Question: A Doctors office is a single-server waiting line system and has an arrival pattern characterized by a Poisson distribution with 3 customers per hour. The

A Doctors office is a single-server waiting line system and has an arrival pattern characterized by a Poisson distribution with 3 customers per hour. The average service time is 12 minutes. The service times are distributed according to the exponential distribution.

The average time a customer can expect to wait in line is:

The probability that the system is idle is:

The expected number of customers in the system is:

The expected number of customers in the waiting line is:

Length of time customer waits in the system

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