Math Solutions

[See Solution] The number of customers per day at a certain sales counter, denoted by Y, has been observed for a long period of time to have a mean of 20 customers

Question: The number of customers per day at a certain sales counter, denoted by \(\mathrm{Y}\), has been observed for a long period of time to have a mean of 20 customers with a standard deviation of 2 customers. The PDF of \(Y\) is not known. What can be said about the probability that \(Y\) will be between 16 and 24 tomorrow?

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