Statistical Analysis and Bivariate Data · Data & Statistics

Linear Regression and Residuals

Fitting a line of best fit and evaluating its accuracy using residual analysis.

Key Questions

  1. 1How does the least squares method minimize the distance between data points and the regression line?
  2. 2Why is a residual plot the best tool for checking the validity of a linear model?
  3. 3What are the dangers of using a regression line to predict values outside the original data range?

ACARA Content Descriptions

AC9M10ST02
Year: Year 11
Subject: Mathematics
Unit: Statistical Analysis and Bivariate Data
Period: Data & Statistics

Suggested Methodologies

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