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.

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

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!