A mean of 22 miles-per-gallon and a standard deviation of 5, Ask an Expert

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The miles-per-gallon obtained by the 1995 model Q cars is normally distributed with a mean of 22 miles-per-gallon and a standard deviation of 5 miles-per-gallon. What is the probability that a car will get less than 21 miles-per-gallon? (4 Decimal format = 0.0000).

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