Practice!

Sample Problem

While doing research for his statistics project, Cody discovers that there is a fairly strong correlation (about 0.65) between household income and SAT scores. Which of the following scatterplots could represent this correlation?

Solution

(D) is the only plot that resembles a correlation of 0.65. (B) and (D) are negative while (A) depicts a correlation that is closer to 1 than 0.65.