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	<updated>2026-04-05T10:12:39Z</updated>
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	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=30409&amp;oldid=prev</id>
		<title>Lisa Hacker: Redirected page to The Gumbel/SEV Distribution</title>
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		<updated>2012-08-08T07:43:41Z</updated>

		<summary type="html">&lt;p&gt;Redirected page to &lt;a href=&quot;/index.php/The_Gumbel/SEV_Distribution&quot; title=&quot;The Gumbel/SEV Distribution&quot;&gt;The Gumbel/SEV Distribution&lt;/a&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:43, 8 August 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;==Characteristics of the Gumbel Distribution==&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;#REDIRECT &lt;/ins&gt;[[&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The_Gumbel&lt;/ins&gt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;SEV_Distribution&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Some of the specific characteristics of the Gumbel distribution are the following:&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	The shape of the Gumbel distribution is skewed to the left. The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has no shape parameter. This means that the Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has only one shape, which does not change.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has location parameter  &amp;lt;math&amp;gt;\mu ,&amp;lt;/math&amp;gt;  which is equal to the mode  &amp;lt;math&amp;gt;\tilde{T},&amp;lt;/math&amp;gt;  but it differs from median and mean. This is because the Gumbel distribution is not symmetrical about its  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt; .&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the left.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Image:WB.16 gumbel pdf.png|center|250px| ]] &lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;&lt;/del&gt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  becomes taller and narrower.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Image:WB.16 effect of sigma.png|center|250px| ]] &lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]&lt;/del&gt;]]&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Lisa Hacker</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=24884&amp;oldid=prev</id>
		<title>Nicolette Young: /* Characteristics of the Gumbel Distribution */</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=24884&amp;oldid=prev"/>
		<updated>2012-04-25T21:59:30Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Characteristics of the Gumbel Distribution&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:59, 25 April 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:WB.16 gumbel pdf.png|center|&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;400px&lt;/del&gt;| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:WB.16 gumbel pdf.png|center|&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;250px&lt;/ins&gt;| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:WB.16 effect of sigma.png|center|&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;400px&lt;/del&gt;| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:WB.16 effect of sigma.png|center|&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;250px&lt;/ins&gt;| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Nicolette Young</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=21256&amp;oldid=prev</id>
		<title>Nicolette Young: /* Characteristics of the Gumbel Distribution */</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=21256&amp;oldid=prev"/>
		<updated>2012-03-15T17:17:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Characteristics of the Gumbel Distribution&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 17:17, 15 March 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Line 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effectofmuongumbel&lt;/del&gt;.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gif|thumb&lt;/del&gt;|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;WB&lt;/ins&gt;.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;16 gumbel pdf.png&lt;/ins&gt;|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot;&gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effectofsigmaongumbel&lt;/del&gt;.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gif|thumb&lt;/del&gt;|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;WB&lt;/ins&gt;.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;16 effect of sigma.png&lt;/ins&gt;|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Nicolette Young</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16960&amp;oldid=prev</id>
		<title>Harry Guo: /* Characteristics of the Gumbel Distribution */</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16960&amp;oldid=prev"/>
		<updated>2012-02-20T18:34:14Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Characteristics of the Gumbel Distribution&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:34, 20 February 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/del&gt;.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [[Appendix: Weibull References|[32]]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Harry Guo</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16959&amp;oldid=prev</id>
		<title>Harry Guo: /* Characteristics of the Gumbel Distribution */</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16959&amp;oldid=prev"/>
		<updated>2012-02-20T18:33:35Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Characteristics of the Gumbel Distribution&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:33, 20 February 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot;&gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [32] &amp;lt;math&amp;gt;.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:*	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Appendix: Weibull References|&lt;/ins&gt;[32&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]]&lt;/ins&gt;] &amp;lt;math&amp;gt;.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Harry Guo</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16958&amp;oldid=prev</id>
		<title>Harry Guo: /* Characteristics of the Gumbel Distribution */</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16958&amp;oldid=prev"/>
		<updated>2012-02-20T18:31:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Characteristics of the Gumbel Distribution&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:31, 20 February 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some of the specific characteristics of the Gumbel distribution are the following:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some of the specific characteristics of the Gumbel distribution are the following:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;The shape of the Gumbel distribution is skewed to the left. The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has no shape parameter. This means that the Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has only one shape, which does not change.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;The shape of the Gumbel distribution is skewed to the left. The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has no shape parameter. This means that the Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has only one shape, which does not change.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has location parameter  &amp;lt;math&amp;gt;\mu ,&amp;lt;/math&amp;gt;  which is equal to the mode  &amp;lt;math&amp;gt;\tilde{T},&amp;lt;/math&amp;gt;  but it differs from median and mean. This is because the Gumbel distribution is not symmetrical about its  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has location parameter  &amp;lt;math&amp;gt;\mu ,&amp;lt;/math&amp;gt;  which is equal to the mode  &amp;lt;math&amp;gt;\tilde{T},&amp;lt;/math&amp;gt;  but it differs from median and mean. This is because the Gumbel distribution is not symmetrical about its  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the left.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the left.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:effectofmuongumbel.gif|thumb|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:effectofmuongumbel.gif|thumb|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  becomes taller and narrower.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  becomes taller and narrower.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:effectofsigmaongumbel.gif|thumb|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Image:effectofsigmaongumbel.gif|thumb|center|400px| ]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;•	&lt;/del&gt;If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [32] &amp;lt;math&amp;gt;.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*	&lt;/ins&gt;If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [32] &amp;lt;math&amp;gt;.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Harry Guo</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16924&amp;oldid=prev</id>
		<title>Harry Guo at 18:07, 20 February 2012</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=16924&amp;oldid=prev"/>
		<updated>2012-02-20T18:07:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:07, 20 February 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;=&lt;/del&gt;==Characteristics of the Gumbel Distribution&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;=&lt;/del&gt;==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Characteristics of the Gumbel Distribution==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some of the specific characteristics of the Gumbel distribution are the following:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Some of the specific characteristics of the Gumbel distribution are the following:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Harry Guo</name></author>
	</entry>
	<entry>
		<id>https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=11179&amp;oldid=prev</id>
		<title>Nicolette Young: Created page with &#039;===Characteristics of the Gumbel Distribution=== Some of the specific characteristics of the Gumbel distribution are the following:  :•	The shape of the Gumbel distribution is …&#039;</title>
		<link rel="alternate" type="text/html" href="https://www.reliawiki.com/index.php?title=Template:Characteristics_of_the_gumbel_distribution&amp;diff=11179&amp;oldid=prev"/>
		<updated>2012-01-04T22:50:24Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;#039;===Characteristics of the Gumbel Distribution=== Some of the specific characteristics of the Gumbel distribution are the following:  :•	The shape of the Gumbel distribution is …&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===Characteristics of the Gumbel Distribution===&lt;br /&gt;
Some of the specific characteristics of the Gumbel distribution are the following:&lt;br /&gt;
&lt;br /&gt;
:•	The shape of the Gumbel distribution is skewed to the left. The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has no shape parameter. This means that the Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has only one shape, which does not change.&lt;br /&gt;
:•	The Gumbel  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  has location parameter  &amp;lt;math&amp;gt;\mu ,&amp;lt;/math&amp;gt;  which is equal to the mode  &amp;lt;math&amp;gt;\tilde{T},&amp;lt;/math&amp;gt;  but it differs from median and mean. This is because the Gumbel distribution is not symmetrical about its  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt; .&lt;br /&gt;
:•	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the left.&lt;br /&gt;
:•	As  &amp;lt;math&amp;gt;\mu &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  is shifted to the right.&lt;br /&gt;
&lt;br /&gt;
[[Image:effectofmuongumbel.gif|thumb|center|400px| ]] &lt;br /&gt;
&lt;br /&gt;
:•	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  increases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  spreads out and becomes shallower.&lt;br /&gt;
:•	As  &amp;lt;math&amp;gt;\sigma &amp;lt;/math&amp;gt;  decreases, the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  becomes taller and narrower.&lt;br /&gt;
:•	For  &amp;lt;math&amp;gt;T=\pm \infty ,&amp;lt;/math&amp;gt;   &amp;lt;math&amp;gt;pdf=0.&amp;lt;/math&amp;gt;  For  &amp;lt;math&amp;gt;T=\mu &amp;lt;/math&amp;gt; , the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  reaches its maximum point &amp;lt;math&amp;gt;\frac{1}{\sigma e}&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Image:effectofsigmaongumbel.gif|thumb|center|400px| ]] &lt;br /&gt;
&lt;br /&gt;
:•	The points of inflection of the  &amp;lt;math&amp;gt;pdf&amp;lt;/math&amp;gt;  graph are  &amp;lt;math&amp;gt;T=\mu \pm \sigma \ln (\tfrac{3\pm \sqrt{5}}{2})&amp;lt;/math&amp;gt;  or  &amp;lt;math&amp;gt;T\approx \mu \pm \sigma 0.96242&amp;lt;/math&amp;gt; .&lt;br /&gt;
:•	If times follow the Weibull distribution, then the logarithm of times follow a Gumbel distribution. If  &amp;lt;math&amp;gt;{{t}_{i}}&amp;lt;/math&amp;gt;  follows a Weibull distribution with  &amp;lt;math&amp;gt;\beta &amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\eta &amp;lt;/math&amp;gt;  , then the  &amp;lt;math&amp;gt;Ln({{t}_{i}})&amp;lt;/math&amp;gt;  follows a Gumbel distribution with  &amp;lt;math&amp;gt;\mu =\ln (\eta )&amp;lt;/math&amp;gt;  and  &amp;lt;math&amp;gt;\sigma =\tfrac{1}{\beta }&amp;lt;/math&amp;gt;  [32] &amp;lt;math&amp;gt;.&amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Nicolette Young</name></author>
	</entry>
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