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What is probability that a repair time exceeds two hours

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Reference no: EM13866064

The time (in hours) required to repair a machine is an exponentially distributed random variable with parameter ?= 1.

(a) What is the probability that a repair time exceeds 2 hours?

(b) What is the conditional probability that a repair takes at least 3 hours, given that its duration exceeds 2 hours?

Reference no: EM13866064

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