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 is the probability that, if driven normally, the car will get 100 miles per gallon or better?
A)0.6%
B)2.5%
C)6%
D)25%

Question

Quizplus · Accepted Answer

The probability that the car will get 100 miles per gallon or better is the area under the normal distribution curve to the right of 100. This area is 0.6%.

The Newest Model of Smart Car Is Supposed to Get