![]() ![]() ![]() Suppose we have the following data for the number of hours studied and the exam score received for 20 students: This tutorial explains how to calculate r 2 for two variables in Excel. ![]() A value of 1 indicates that the response variable can be perfectly explained without error by the predictor variable.A value of 0 indicates that the response variable cannot be explained by the predictor variable at all. ![]() In technical terms, it is the proportion of the variance in the response variable that can be explained by the predictor variable. R-squared, often written as r 2, is a measure of how well a linear regression model fits a dataset. ![]()
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