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    Question: Interaction Term

    Short question on how to interpret the results of a linear regression with regards to interaction terms. Model without interaction: y = c + b1x1 + b2x2 Results: both independent significant ( x1 & x2) When introducing interaction term: y = c + b1*x1 + b2*x2 + b3*x1*x2 Results: b1*x1 and...