One person barber shop can accommodate a maximum of 5 people at a time(4 waiting and 1 getting hair-cut). Customers arrive according to a Poisson distribution with mean 5/hr. the barber cuts hair at an average rate of 4/hr. (i) What % of time is the barber idle? (ii) What fraction of the potential customers are turned away? (iii) What is the expected number of customers waiting for a hair-cut? (iv) How much time can a customer expect to spend in the barber shop?
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sorry dont know
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