Question: Consider a bank where potential customers arrive at rate of 60 customers per hour. However, because of limited space, one out of every four arriving

Consider a bank where potential customers arrive at rate of 60 customers per hour. However, because of limited space, one out of every four arriving customers finds the bank full and leaves immediately (without entering the bank). Suppose that the average number of customers waiting in line in the bank is 3.5. How long will a typical entering customer have to wait in line?

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