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Suppose that water usages in American showers are normally distributed, with an average shower using 16.2 gallons, and a standard deviation of 3.8 gallons. Estimate the percentage of showers that used (a) between 8.6 and 23.8 gallons. % (b) more than 20 gallons. % (c) less than 8.6 gallons. % (d) between 12.4 and 23.8 gallons. %

Suppose that water usages in American showers are normally distributed, with an average shower using 16.2 gallons, and a standard deviation of 3.8 gallons. Estimate the percentage of showers that used (a) between 8.6 and 23.8 gallons. % (b) more than 20 gallons. % (c) less than 8.6 gallons. % (d) between 12.4 and 23.8 gallons. %

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that water usages in American showers are normally distributed, with an average shower using 16.2 gallons, and a standard deviation of 3.8 gallons. Estimate the percentage of showers that used (a) between 8.6 and 23.8 gallons. % (b) more than 20 gallons. % (c) less than 8.6 gallons. % (d) between 12.4 and 23.8 gallons. %
Transcribed Image Text:Suppose that water usages in American showers are normally distributed, with an average shower using 16.2 gallons, and a standard deviation of 3.8 gallons. Estimate the percentage of showers that used (a) between 8.6 and 23.8 gallons. % (b) more than 20 gallons. % (c) less than 8.6 gallons. % (d) between 12.4 and 23.8 gallons. %
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