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6.8 A device has a constant failure rate of 0.7/year. (a) What is the probability that...

6.8 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?

Math   Statistics-And-Probability   
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