The newest model of smart car is supposed to get excellent gas mileage. A thorough study showed that gas mileage (measured in miles per gallon) is normally distributed with a mean of 75 miles per gallon and a standard deviation of 10 miles per gallon. What value represents the 50th percentile of this distribution?
a. 75
b. 85
c. 95
d. 105
a
RATIONALE: The 50th percentile of a normal distribution is located at its mean. In this case, the mean is 75 mpg, so the 50th percentile is 75.
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