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Mathematics, 05.05.2021 14:00 Uhmjujiooo45701

A fast food restaurant receives the drive through orders at a mean rate of 10 orders per hour, and it is assumed that the mean service rate is 12 orders per hour. A. What is the probability that the drive through is idle?
B. What is the average number of orders that will be waiting for service?
C. What is the average number of orders in the system?
D. What is the average waiting time plus service time of an order?
E. What is the utilization factor?
F. What is the probability of three orders in the system?​

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