Question
A bank's customers arrive at an automatic teller machine at a rate of 18 an hour.The service transaction rate is 12 customersevery half an hour.
A bank's customers arrive at an automatic teller machine at a rate of 18 an hour.The service transaction rate is 12 customersevery half an hour.
What is the average waiting time (in minutes) before service begins?
What is the average number of customers waiting for service?
What is the average time (in minutes) a customer spends in the system?
What is the probabilitythat there are between 10 (inclusive) and 25 (inclusive) customers in the system?
What is the probability that at least 6 customers are in the system?
What is the probability that less than 8 customers are in the system?
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Introduction to graph theory
Authors: Douglas B. West
2nd edition
131437372, 978-0131437371
