Question

The dotplot shows the EPA highway gas mileage estimates in miles per gallon (mpg) for a random sample of 21 model year

2018 midsize cars.

Explain why this distribution of highway gas mileage is not approximately Normal.
• The distribution of highway gas mileage is approximately Normal.
-The distribution of highway gas mileage is not approximately Normal because there is too much variability.
-The distribution of highway gas mileage is not approximately Normal because there appears to be an outlier.
-The distribution of highway gas mileage is not approximately Normal because the distribution is skewed to the right.
-The distribution of highway gas mileage is not approximately Normal because the distribution is skewed to the left

Answer 1

Answer: Choice C) not normal; distribution is skewed to the right

It's skewed to the right because of the outliers on the right. A normal distribution is bell shaped and symmetric.