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| | | #REDIRECT [[Crow_Extended_-_Continuous_Evaluation#p__Ratio]] |
| ===<math>p</math> Ratio===
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| In the Crow Extended - Continuous evaluation, there is a certain probability of not incorporating a corrective action by time <math>T</math> . This is the additional (third parameter), as compared to the Crow Extended model. We define <math>p</math> as:
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| ::<math>p=\frac{\text{All modes such that, if seen, will be corrected at time }T\text{, or later}}{\text{All failure modes such that, if seen, the corrective action will be delayed}}</math>
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| It is assumed that the ratio <math>p</math> remains fixed over . This implies that each time a distinct failure mode is seen, the probability that the corrective action is delayed until time <math>T</math> or later is <math>p</math> . In other words, each time a new BD mode is seen over <math>(0,T)</math> there is a probability <math>p</math> that the corrective action for that mode will not have been incorporated into the system by time <math>T</math> . Under the Crow Extended two-parameter model, this probability is always equal to 1 at time <math>T.</math>
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