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General Mathematics

Bivariate data, finance, networks and more for Units 1 to 4, grounded in real contexts.

Scatterplot with a least-squares line Fourteen data points show a positive linear association. The least-squares line, drawn in orange, runs only across the range of the data. x y
A least-squares line, drawn only across the range of the data.

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Unit 3

Bivariate data

General Free
Reading a least-squares line

Unit 3 · Bivariate data · Worked examples

Worked examples on interpreting slope, intercept and r, and on when not to extrapolate.

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