Template:Lognormal distribution failure rate function: Difference between revisions

Latest revision as of 05:30, 13 August 2012

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-===The Lognormal Failure Rate Function===
+#REDIRECT [[Lognormal Distribution Functions]]
-The lognormal failure rate is given by:
-::<math>\lambda (t)=\frac{f(t)}{R(t)}=\frac{\tfrac{1}{t\cdot {{\sigma' }}\sqrt{2\pi }}{{e}^{-\tfrac{1}{2}{{(\tfrac{{t}'-{\mu }'}{{{\sigma' }}})}^{2}}}}}{\int_{{{t}'}}^{\infty }\tfrac{1}{{{\sigma' }}\sqrt{2\pi }}{{e}^{-\tfrac{1}{2}{{(\tfrac{x-{\mu }'}{{{\sigma' }}})}^{2}}}}dx}</math>
-As with the reliability equations, standard normal tables will be required to solve for this function.