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Let X denote the lifetime of a machine component with an exponential distribution. The mean time for the component failure is 2500 hours. Required: What is the probability that the lifetime exceeds the
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Let X denote the lifetime of a machine component with an exponential distribution. The mean time for the component failure is 2500 hours.

Required:
What is the probability that the lifetime exceeds the mean time by more than 1 standard deviations?

User Sumak
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1 Answer

7 votes

Answer:

15.8 % ???

at z = 1 p=.8413

I guess the question is asking 1-.8413 = 15.8 %

Explanation:

User Dallion
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