Which of the following pairs of variables are likely to be uncorrelated?
A) average income and the incidence of dental disease
B) adult shoe size and IQ scores
C) the price of a car and the age of a car
D) hours spent watching TV and grade point average

Question

Quizplus · Accepted Answer

There is no known relationship between adult shoe size and IQ scores, so these variables are likely to be uncorrelated. The other pairs of variables have potential relationships: higher average income may lead to better access to dental care, newer cars may cost more, and spending more time watching TV may lead to lower grades.

Which of the Following Pairs of Variables Are Likely to Be