The Gap Slides
Slide deck for Lesson 2 focusing on residuals. It introduces the definition of a residual (Actual - Predicted), explores the meaning of positive and negative residuals using sports and finance contexts, and explains why the sum of residuals is always zero for an LSRL.
The Error Margin Worksheet
Worksheet for Lesson 2 that teaches students how to calculate residuals using real-world NBA salary data and visualize residuals as vertical deviations on a scatter plot. It emphasizes the conceptual understanding of positive and negative residuals.
Error Margin Answer Key
Answer key for "The Error Margin Worksheet" (Lesson 2), providing calculated residuals for the NBA case study and clear explanations for contextual interpretations.