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The reference desk of a university library recives requests for asssistance. Assume that a poisson probability distribution with an arrival rate of 10 requets per hour can be used to describe the arrival pattern and that service times follow an exponential probability distribution with a service rate of 12 requests per hour.
A. What is the probibility that no requests for assistance are in the system?
B. What is the average number of requests that will be waiting for service?
C. What is the average waiting time in minutes before service begins?
D. What is the average time at thhere reference desk in munutes?
E. What is the probabilty that a new arrival has to wait for serivice?

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Operation Management, Management Studies

Category:- Operation Management
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