Template:Alta exponential conditional reliability: Difference between revisions

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====Conditional Reliability====
#REDIRECT [[Distributions_Used_in_Accelerated_Testing]]
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The conditional reliability function for the 1-parameter exponential distribution is given by:
 
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::<math>R(T,t)=\frac{R(T+t)}{R(T)}=\frac{{{e}^{-\lambda (T+t)}}}{{{e}^{-\lambda T}}}={{e}^{-\lambda t}}</math>
 
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which says that the reliability for a mission of  <math>t</math>  duration undertaken after the component or equipment has already accumulated  <math>T</math>  hours of operation from age zero is only a function of the mission duration, and not a function of the age at the beginning of the mission. This is referred to as the "memoryless property".
 
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Latest revision as of 01:17, 16 August 2012