In a simple regression analysis (where y is a dependent and x an independent variable), if the coefficient of determination is 0.81, the coefficient of correlation must be positive must be 0.9 None of these answers is correct. is 0.6561
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The coefficient of determination is denoted by $R^2$. The coefficient of correlation is denoted by $r$. The relationship between the coefficient of determination and the coefficient of correlation is given by the formula: $R^2 = r^2$ Given that the coefficient Show more…
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