Regression Line Equation, Prediction and Residuals

What this note covers

1. 1. What Is the Least-Squares Regression Line?
2. 2. Interpreting the Gradient and Y-Intercept in Context
3. 3. Using the Regression Line for Prediction: Interpolation and Extrapolation
4. 4. Calculating and Interpreting Residuals
5. 5. The Coefficient of Determination R2 and Proportion of Variation Explained
6. 6. Evaluating the Regression Model: Bringing It All Together
7. 7. Classroom regression technology and EA calculator conditions

7 sections · 14 key terms & formulas · 6 common mistakes