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A device has a constant failure rate of 0.7 /year.(a) What is the probability that the device will fail during the second year of operation?(b) If upon failure the device is immediately replaced, what is the probability that there will be more than one failure in 3 years of operation?Q2) A servomechanism has an MTBF of 2000 hr. with a constant failure rate.(a) What is the reliability for a 125-hr mission?(b) Neglecting repair time, what is the probability that more than one failure will occur during a 125-hr mission?(c) That more than two failures will occur during a 725-hr mission?
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