Mathematics, 21.02.2021 01:00, ilovesummertime207

Customer arrivals at a bank are random and independent; the probability of an arrival in any one-minute period is the same as the probability of an arrival in any other one-minute period. Answer the following questions, assuming a mean arrival rate of two customers per minute. Required: a. What is the probability of exactly four arrivals in one-minute period? b. What is the probability of at least four arrivals in a one-minute period?

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Customer arrivals at a bank are random and independent; the probability of an arrival in any one-min...