Mathematics, 20.04.2021 16:40 Justus4215

.Threepeople, Alice, Betty, andCarolenter the bank at almost the same time and in that order. Alice and Betty go directly into service while Carol waits for the first available teller. Suppose that the service times for each customer are exponentially distributed with mean 4 min. (a) What is the expected total amount of time for Carol to complete her businesses

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