In a single-channel queuing model, the customer arrival rate is 12 per – McqOptions

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1.	In a single-channel queuing model, the customer arrival rate is 12 per hour and the serving rate is 24 per hour. The expected time that a customer is in queue is minutes.
A.	2.1min
B.	2.5 min
C.	3.5 min
D.	2 min
Answer» C. 3.5 min

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