A Student Wonders If People with Similar Heights Tend to Date

Multiple Choice

A student wonders if people with similar heights tend to date each other. She measures herself, her dormitory roommate, and the women in the adjoining rooms; then she measures the next man each woman dates. Here are the pairs of data (heights in inches) : Which of the following statements is true?

A) The variables measured are all categorical.
B) There is a strong positive correlation between the heights of men and women, because the women are always smaller than the men they date.
C) There is a positive correlation between the heights of men and women.
D) Correlation makes no sense here, because gender is a categorical variable.