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If it is suspected that there could be some interaction between two independent x 1 and x 2 , which of the following steps would
If it is suspected that there could be some interaction between two independentx1andx2, which of the following steps would be appropriate to explore the effect of interaction between the two variables on the dependent variable in a multiple regression model?
Add a logx2variable to the regression model.
Add anx12x22variable to the regression model.
Add anx1x2variable to the regression model.
Add a logx1variable to the regression model.
Add anx22variable to the regression model.
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