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In a queueing system, customers arrive once every 5 hours (standard deviation = 5) and services take 3 hours (standard deviation = 6.5). (Do

In a queueing system, customers arrive once every 5 hours (standard deviation = 5) and services take 3 hours (standard deviation = 6.5). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average number of customers in the system? customers

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