2. Customers arrive at the IT help desk (single server) at rate \(\lambda = 1/8\) per minute. Suppose that each service takes a time with mean 5 and standard deviation 1.6. (i) In the long run what is the fraction of time that the server is idle? (ii) What is the average waiting time \(W_0\) for a customer (not including their service time)? (iii) What is the mean queue length?
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This can be calculated using the formula Ļ = Ī» * E[S], where Ī» is the arrival rate and E[S] is the mean service time. Show moreā¦
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