Use the following information for following questions . The Normal distribution below models the distribution of
highway gas consumption (in miles per gallon) for a large collection of SUVs when driving on level roads. The
center is shown at 24.8 mpg and the standard deviations reflect the spread of the data.
-What percent of SUVs consume 37.2 mpg or less?
A)90%.
B)97.5%
C)95%.
D)50%.

Question

Use the following information for following questions . The Normal distribution below models the distribution of
highway gas consumption (in miles per gallon) for a large collection of SUVs when driving on level roads. The
center is shown at 24.8 mpg and the standard deviations reflect the spread of the data. 
-What percent of SUVs consume 37.2 mpg or less?
A)90%. 
B)97.5% 
C)95%. 
D)50%.

Quizplus · Accepted Answer

In a standard normal distribution, a value that is 2 standard deviations above the mean corresponds to the 97.5th percentile. Since 37.2 mpg is 2 standard deviations above the mean for SUVs, 97.5% of SUVs consume 37.2 mpg or less.

Use the Following Information for Following Questions