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
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ISBN:9781119256830
Author:Amos Gilat
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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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VIEWStep 4: Calculating the percent of showers that are used less than 8.6 gallons
VIEWStep 5: Calculating the percent of showers that are used Between 12.4 and 23.8 gallons
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