A "perfect" straight line would render an R-square value of zero.

Name: A "perfect" straight line would render an R-square value of zero.
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A perfect straight line would actually render an R-square value of 1, indicating that all of the variation in the data is explained by the regression line. A value of 0 would indicate that the regression line fails to explain any of the variation in the data.

A "Perfect" Straight Line Would Render an R-Square Value of Zero