In a single server infinite population queuing model. Arrivals follow – McqOptions

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1.	In a single server infinite population queuing model. Arrivals follow a Poisson distribution with mean = 4 per hour. The service times are exponential with mean service time equal to 12 minutes. The expected length of the queue will be
A.	4
B.	3.2
C.	1.25
D.	24.3
Answer» C. 1.25

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