Apple-Apple Watch Sport 42mm Rose Gold Aluminum Case-Stone Sport Band.
I think you inversed the relationship. Multiple R is the correlation between actual and predicted values of the dependant variable. R2 is the modelâs accuracy in explaining the dependant variable. I think there is a testable difference.
R^2 is the proportion of sample variance explained by predictors in the model. Thus it is the ratio of the explained sums of squares to the total sums of squares in the sample. R is the multiple correlation coefficient obtained by correlating the predicted data (y-hat) and observed data (y).