Question

In a study of towns, there was a positive correlation between the number of mail boxes and the number of traffic lights in a town. Which variable is most likely the lurking variable that explains the correlation?

A . Population

B. Commute times

C. Ages of residents

D. Highest temperatures

Answer 1

The answer is A, population. If there are more people, it means there will be more mail boxes and a higher need for traffic lights.