For which one of these relationships could we use a regression analysis? Only one choice is correct.
A) Relationship between weight and height.
B) Relationship between political party membership and opinion about abortion.
C) Relationship between gender and whether person has a tattoo.
D) Relationship between eye color (blue, brown, etc.) and hair color (blond, etc.).

Question

Quizplus · Accepted Answer

Regression analysis is most appropriate for examining the relationship between two continuous variables, such as weight and height. Choices B, C, and D involve categorical variables, which are not typically analyzed using regression analysis without converting them into a format suitable for such analysis (e.g., through dummy coding).

For Which One of These Relationships Could We Use a Regression