Dummy variables are used to respecify categorical variables.

Name: Dummy variables are used to respecify categorical variables.
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Dummy variables are used to transform categorical variables into numerical variables that can be used in statistical models. They are created by assigning a value of 1 or 0 to each category in the variable, with one category designated as the reference category. This process is known as respecifying the categorical variable.

Dummy Variables Are Used to Respecify Categorical Variables