A regression model is used to describe the relationship between what?

A regression model is used to describe the relationship between what?

• A. a dependent variable and one or more independent variables.
• B. two median values.
• C. a categorical variable and a numerical variable.
• D. the maximum and minimum values in a dataset.

Answer: (A)

Regression describes how a dependent variable depends on one or more independent variables. It aims to quantify how the outcome changes as the predictors vary, enabling explanation, inference, and prediction. The predictors can be continuous or categorical (often coded for analysis). The other options describe things like simple summaries or different types of comparisons, not the modeling of a relationship between an outcome and its predictors.

Regression describes how a dependent variable depends on one or more independent variables. It aims to quantify how the outcome changes as the predictors vary, enabling explanation, inference, and prediction. The predictors can be continuous or categorical (often coded for analysis). The other options describe things like simple summaries or different types of comparisons, not the modeling of a relationship between an outcome and its predictors.