Question

The EPA fuel economy estimates for automobiles models tested recently found them to be

normally distributed with a mean of 24.8 mpg and a standard deviation of 6.2 mpg. What is
the percentile rank of an automobile that has a fuel economy of 35 mpg?
90th Percentile
O 5th Percentile
O 95th Percentile
10th Percentile

Answer 1

Explanation:

(35-24.8) / 6.2 = z-score of + 1.645 corresponding to .9495 =

~ 95th percentile