Find percentage of regular grade gasoline sells

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Suppose that mean retail price per gallon of regular grade gasoline is 3.43 with a standard deviation of .10 and that the retail price per gallon has a bell-shaped distribution. NOTE: Please use empirical rule approximations for this problem.

a. What percentage of regular grade gasoline sells for between 3.33 and 3.53 per gallon (to decimal)?

b. What percentage of regular grade gasoline sells for between 3.33 and 3.63 per gallon (to decimal)?

c. What percentage of regular grade gasoline sells for less than 3.63 per gallon (to decimal)?

Reference no: EM132851393

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