Question: Consider a single-server queue in which the rate of service is 30 per hour. The inter-arrival time is exponentially distributed with a mean of 4

Consider a single-server queue in which the rate of service is 30 per hour. The inter-arrival time is exponentially distributed with a mean of 4 minutes. The variance of the service time is 20 minutes-squared. Compute the average number in the queue and the average number in the system

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