Question

The box whisker plots below show the distribution of prices (in thousands of dollars) of sports cars at two local dealerships.

Which dealership has a wider range of prices for sports cars?

A. Dealer 1
B. There is not enough information given to answer the question.
C. Both dealerships have the same range of prices.
D. Dealer 2

Answer 1

Dealer 2

Explanation:

Dealer 1: 5

Dealer 2: ≈8.5

Find the upper and lower extremes (also known as the minimum and maximum) of the two plots, aka the two dots that are the furthest away from each other.

Dealer 1: 25 and 30

Dealer 2: 21 and 29.5

Subtract the maximum with the minimum for both. Whichever number is bigger, determines which dealership has a wider range of prices.