Scatter Graphs & Correlation

Plot two variables against each other and describe the relationship — from strong to none.

Correlation

Describe the relationship between two variables on a scatter graph — positive, negative, strong, weak or no correlation — with worked examples.

Line of Best Fit

Draw a line of best fit on a scatter graph and use it to make predictions — including the difference between interpolation and extrapolation.

Plotting Scatter Graphs

How to plot a scatter graph from a table of paired data — axis choice, scale, and what to watch for when placing points accurately.