amberm4706 amberm4706

22-03-2024
Mathematics

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Suppose that the mean retail price per gallon of regular grade gasoline in the United States is $3.45 with a standard deviation of $0.10 and that the retail price per gallon has a bell-shaped distribution.
What percentage of regular grade gasoline sold between $3.35 and $3.55 per gallon? ___ %

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