A Certain Model of Automobile Has Its Gas Mileage (In

Multiple Choice

A certain model of automobile has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 22 mpg and a standard deviation of 4 mpg. Find the probability that a car selected at random has gas mileage less than 21 mpg. Round your answer to four decimal places. ​

A) 0.4013
B) 0.9013
C) 0.0987
D) 0.5987
E) 0.1974