Single window for serving customers

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Reference no: EM131147151

An ice cream store has a single window for serving customers. Customers arrive at the rate of 10 per hour (Poisson distributed). The store can serve 15 customers per hour (Poisson distributed).

a. What is the average number of customers waiting in line, including the customer being served?

b. How long must a customer wait in line before being served, on average?

Reference no: EM131147151

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