ATARMAxxing · TCE General Mathematics revision notes
Fitting the least-squares line by formula and calculator; interpreting gradient and intercept in context
Bivariate data analysis — least-squares regression
What this note covers
- What the least-squares line represents
- Fit the line from summary values
- Interpret the gradient in context
- Interpret the intercept only when it is meaningful
- Predict with the fitted equation
- Check the line and report it precisely
6 sections · 10 key terms & formulas · 6 common mistakes
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