The time (in hours) required to repair a machine isan
Chapter 5, Problem 5.32(choose chapter or problem)
The time (in hours) required to repair a machine isan exponentially distributed random variable withparameter = 12. What is (a) the probability that a repair time exceeds 2hours? (b) the conditional probability that a repair takes at least 10 hours, given that its duration exceeds 9 hours?
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