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A small shop orders sandwiches from an outside vender. The marginal cost of a sandwich to...

A small shop orders sandwiches from an outside vender. The marginal cost of a sandwich to the shop owner is $1, and sandwiches are sold for $5 per sandwich. The shop’s customers have a daily demand for sandwiches that is uniformly distributed over the integers {5,…,35}. That is, the probability density (mass) function is f(x) = 1/31 for x = 5, 6,...,35. Any unsold sandwiches are discarded at the end of the day. What is the expected number of sandwiches customers demand each day? What is the standard deviation in daily customer demand?                            

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TOPIC:Mean and sd of the discrete uniform distribution.

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