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Interaction Term
In statistics, an interaction term is used in models to determine if the effect of two or more variables on a response variable is not additive, indicating that the variables interact in how they influence the response.
Coefficient
A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.
Regression Equation
A formula that expresses the linear relationship between independent and dependent variables.
Least-Squares Regression
A statistical method used to determine a line of best fit by minimizing the sum of squares of the distances of observed values from the predicted values.
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