Template:Aw mean: Difference between revisions
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==== The Mean or MTTF ==== | ==== The Mean or MTTF ==== | ||
The mean, <math>\overline{T}</math>,of the 2-parameter Weibull <span class="texhtml">''pdf''</span> is given by: | The mean, <math>\overline{T}</math>, of the 2-parameter Weibull <span class="texhtml">''pdf''</span> is given by: | ||
<br> | <br> | ||
Revision as of 23:31, 6 March 2012
The Mean or MTTF
The mean, [math]\displaystyle{ \overline{T} }[/math], of the 2-parameter Weibull pdf is given by:
- [math]\displaystyle{ \overline{T}=\eta \cdot \Gamma \left( \frac{1}{\beta }+1 \right) }[/math]
where [math]\displaystyle{ \Gamma \left( \tfrac{1}{\beta }+1 \right) }[/math] is the gamma function evaluated at the value of [math]\displaystyle{ \left( \tfrac{1}{\beta }+1 \right) }[/math] .