Astatistical tutorial centre has been designed to handle a maximum of 25 students per day. suppose that the number x of students visiting this centre each day is a normal random variable with mean 15 and variance 16.
part a) what is the return period for this centre rounded to the nearest day?

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Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%