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

In National 4 Maths learn how to draw a scatter diagram and a line of best fit. Use the diagram to help make predictions on future results.

A line of best fit is usually drawn on a scatter diagram. It's drawn so that the points are evenly distributed on either side of the line. There are various methods for drawing this 'precisely ...