Question: 12. Consider the queueing system for the walk-in services of a clinic. The average time between two consecutive arrivals is 3 minutes. Customers join a
12. Consider the queueing system for the walk-in services of a clinic. The average time between two consecutive arrivals is 3 minutes. Customers join a single queue and get served by one of 3 available servers. A server can serve 7 customers per hour on the average. The customers get served first-come-first-served (FCFS). What is the average number of customers waiting in the queue at any point in time? Mark the nearest answer.
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1
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18
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21
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30
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2
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