SOLUTION: The lifetime of a mechanical assembly in a vibration test is exponentially distributed with mean of 404 hours. If an assembly has been tested 300 hours without a failure, what is t
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Question 1131696: The lifetime of a mechanical assembly in a vibration test is exponentially distributed with mean of 404 hours. If an assembly has been tested 300 hours without a failure, what is the probability of a failure in the next 64 hours?
(Please enter your answers as fractions in lowest terms or as decimals rounded to four decimal places. Thank you!) Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! mean is 1/404=0.002475
next 64 hours is what matters
1-e^(-64*0.002475) is the area under the curve that is <=64
=0.1465
