The national average price per gallon for gasoline is normally distributed with a mean (currently) of $2.34 per gallon with a

Question

The national average price per gallon for gasoline is normally distributed with a mean (currently) of $2.34 per gallon with a standard deviation of $0.26 per gallon. Which of the following represents the proportion of the gas prices that lie between $2.00 and $3.00?
(1) 56%     (3) 84%
(2) 72%     (4) 90%

Kunduz · Accepted Answer

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