A dummy variable is used as an independent variable in a regression model when
A)2 independent variables interact.
B)the variable involved is categorical.
C)the variable involved is numerical.
D)a curvilinear relationship is suspected.

Question

Quizplus · Accepted Answer

Dummy variables are used to represent categorical variables in a regression model. They allow us to assign numerical values to categorical variables, making them easier to include in a regression equation.

A Dummy Variable Is Used as an Independent Variable in a Regression