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Customers Arrive at a Video Rental Desk at the Rate

Question 67

Multiple Choice

Customers arrive at a video rental desk at the rate of one per minute (exponential interarrival times) . Each server can handle 0.4 customers per minute (exponential service times) .
If there are 4 servers, what is the probability of three or fewer customers in the system?


A) 0.19
B) 0.23
C) 0.63
D) 0.68
E) 0.79

Correct Answer:

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