The line of best fit is an output of regression analysis that represents the relationship between two or more variables in a dataset.

Calculating a Least Squares Regression Line: Equation, Example, Explanation If you want a simple explanation of how to calculate and draw a line of best fit through your data, read on!

The Goodness of Fit of Regression Formulæ, and the Distribution of Regression Coefficients R. A. Fisher Journal of the Royal Statistical Society , pp. 597-612 (16 pages) ...

Goodness-of-fit statistics for general multiple-linear-regression equations are reviewed for the case of replicated responses. A modification of the coefficient of determination is recommended. This ...