# Customers in a Queue

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Customers arrive into a queue, where they are served, and then depart. We model the time between two successive arrivals by an exponential distribution with an arrival rate l=9. Similarly, the departure times are modeled by an exponential distribution with a departure rate m=10. Find the average number of customers in the queue.

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##### Solution Summary

An appropriate exponenial mdel is used to solve a queueing problem. The solution is detailed and well presented.

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