What is the purpose of an interaction term in a regression model?
- To increase the complexity of the model
- To minimize the error of the model
- To represent the combined effect of two variables
- To represent the effect of one variable based on the level of another
An interaction term in a regression model is used to represent the combined effect of two independent variables on the dependent variable. It captures situations where the effect of one variable on the dependent variable is different at different levels of another variable.
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