Mathematics, 16.03.2020 21:16, lays20001

The energy information administration reported that the mean retail price per gallon of regular grade gasoline was $3.43. Suppose that standard deviation was $0.10 and that the retail price per gallon has a bell shaped distribution.

What percentage of regular grade gasoline sold between $3.33 and $3.53 per gallon?
What percentage of regular grade gasoline sold between $3.33 and $3.63 per gallon?
What percentage of regular grade gasoline sold for more than $3.63 per gallon?

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The energy information administration reported that the mean retail price per gallon of regular grad...