A waiter earns tips that has a mean of 7.5 dollars and a standard deviation of 2 dollars. Assume that he collects 100 tips in one week, and each tip is given independently. a. Find the expected total amount of his tips. Express your answer accurate to the three decimal places. b. Find the standard deviation for the total amount of this tips. Express your answer accurate to the three decimal places. c. Find the approximate probability that the total amount of this tips exceeds 720 dollars. Express your answer accurate to three decimal places.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A waiter earns tips that has a mean of 7.5 dollars and a standard deviation of 2 dollars. Assume that he collects 100 tips in one week, and
each tip is given independently.
a. Find the expected total amount of his tips. Express your answer accurate to the three decimal places.
b. Find the standard deviation for the total amount of this tips. Express your answer accurate to the three decimal places.
c. Find the approximate probability that the total amount of this tips exceeds 720 dollars. Express your answer accurate to three decimal
places.
Excel Worksheet-1.xlsx
Transcribed Image Text:A waiter earns tips that has a mean of 7.5 dollars and a standard deviation of 2 dollars. Assume that he collects 100 tips in one week, and each tip is given independently. a. Find the expected total amount of his tips. Express your answer accurate to the three decimal places. b. Find the standard deviation for the total amount of this tips. Express your answer accurate to the three decimal places. c. Find the approximate probability that the total amount of this tips exceeds 720 dollars. Express your answer accurate to three decimal places. Excel Worksheet-1.xlsx
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