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!

National 4 Scatter graphs Line of best fit Scatter graphs are a visual way of showing if there is a connection between groups of data.

Revise how to make estimations from a scatter graph and line of best fit, as part of National 5 Maths.