Question: 4. The post office uses a multiple channel queue, where customers wait in a single line for the first available window. If the average service

4. The post office uses a multiple channel queue,

4. The post office uses a multiple channel queue, where customers wait in a single line for the first available window. If the average service time is 1 minute and the arrival rate is 7 customers every five minutes, find, when two service windows are open, (assume Exponential Distribution for arrival and service and calculate results for a five-minute period) the probability both windows are idle. b. the probability a customer will have to wait. the average time a customer is in line. (of a five-minute period) d. the average time a customer is in the post office. (of a five-minute period) a. c

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