In multiple regression analysis,when the response surface (the graphical depiction of the regression equation)hits every single point,the sum of squares for error SSE = 0,the standard error of estimate sε = 0,and the coefficient of determination R² = 1.

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When the response surface hits every single point, it means that the model perfectly fits the data, and the error is 0. Therefore, SSE = 0, sε = 0, and R² = 1 (indicating perfect correlation).

In Multiple Regression Analysis,when the Response Surface (The Graphical Depiction