Assume that they only served parties of two the entire day

Reference no: EM13321878

A popular restaurant reviewed sales data and determined that the average bill for a party of two is normally distributed with a mean of $100 and a standard deviation of $10. At the close of one day, the manager analyzed its daily sales and concluded that they had 112 bills for that day that exceeded $85. How many parties did they serve that day? (Assume that they only served parties of two the entire day.)

Reference no: EM13321878

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