• Regression Lines
• Some Examples
• Error aka Residual
• Why Regression Lines?  I can read a Scatterplot?!
• Quick Example
• Extrapolation
• Defn:  Extrapolation
• Lines:  A quick Review
• Example
• Drawing Regression Lines
• Least-Squares Regression Line
• Whew!  Technology is a Good Thing
• Equation of Least-Squares Regression Line
• Comments about Regression Lines
• Fat Consumption and Cancer
• Example Continued
• Ex: Continued
• Correlation and Regression
• Equation of Least-Squares Regression Line
• Properties of the Regression Line
• r2
• Interpreting r2