Let X 5 the time between two successive arrivals at thedrive-up window of a local bank

Chapter 4, Problem 59

(choose chapter or problem)

Let X 5 the time between two successive arrivals at thedrive-up window of a local bank. If X has an exponentialdistribution with l 5 1 (which is identical to a standardgamma distribution with a 5 1), compute the following:a. The expected time between two successive arrivalsb. The standard deviation of the time between successivearrivalsc. P(X # 4) d. P(2 # X # 5)

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