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Suppose that water usages in American showers are normally distributed, with an average shower using 16.4 gallons, and a standard deviation of 2.9 gallons. Estimate

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Suppose that water usages in American showers are normally distributed, with an average shower using 16.4 gallons, and a standard deviation of 2.9 gallons. Estimate the percentage of showers that used (a) between 13.5 and 19.3 gallons. (b) more than 19.3 gallons. (c) less than 10.6 gallons. % (d) between 10.6 and 25.1 gallons. Enter an integer or decimal number [more. . ] Submit

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