Suppose you are monitoring arrivals at the drive-up window of a local bank. These arrivals have an approximate Poisson distribution with an average ra

Suppose you are monitoring arrivals at the drive-up window of a local bank. These arrivals have an approximate Poisson distribution with an average rate of one arrival per hour. Compute the following:a. The expected time between two successive arrivals and the standard deviation of the time between two successive arrivals. (Hint: Use what we learned about applications of the gamma and exponential distributions).b. The expected time until two arrivals and the standard deviation of the time until two arrivals.c. The probability that up to 4 hours will elapse until the first arrival at the window

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