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Mathematics, 19.02.2021 01:00 lexadoodle8945
Suppose that the mean retail price per gallon of regular grade gasoline in the United States is $3.47 with a standard deviation of $0.20 and that the retail price per gallon has a bell-shaped distribution. (a) What percentage of regular grade gasoline sold between $3.27 and $3.67 per gallon
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