ap statistics - least-squares regression lines

timestamps

• 0:00

  Introduction to Regression Lines

• 0:30

  Series Overview and Review

• 1:00

  Lesson Agenda

• 1:31

  Reviewing Scatter Plots

• 2:03

  Describing Association

• 2:34

  Example Association Description

• 3:05

  Linear Associations

• 3:36

  Least Squares Regression Line

• 4:08

  Making Predictions

• 4:38

  Regression Equation Components

• 5:08

  Y-Hat Explanation

• 5:39

  Intercept and Slope

• 6:10

  Specific Example Equation

• 6:40

  Prediction Calculation

• 7:12

  Long Jump Example

• 7:42

  Predicting Jump Length

• 8:13

  Actual vs Predicted

• 8:44

  Previewing Residuals

• 9:14

  Regression Components Summary

• 9:47

  Understanding Extrapolation

• 10:18

  Extrapolation Example

• 10:49

  Dangers of Extrapolation

• 11:21

  Interpreting Slope and Intercept

• 11:51

  Checkout Time Example

• 12:22

  Slope Interpretation

• 12:54

  Slope Template

• 13:27

  Example Slope Interpretation

• 13:58

  Intercept Interpretation

• 14:30

  Intercept Template

• 15:00

  Slope and Intercept Summary

• 15:30

  Intercept Context Issues

• 16:02

  Section Roundup

• 16:32

  Salmon Example

• 17:03

  Interpreting Slope

• 17:34

  Sample Slope Response

• 18:36

  Introducing Residuals

• 19:06

  Defining Residuals

• 19:37

  Residual Calculation Example

• 20:08

  Interpreting Residuals

• 20:38

  Positive vs Negative Residuals

• 21:09

  Underestimate and Overestimate

• 21:41

  Residual of Zero

• 22:11

  Residuals and Association Strength

• 22:41

  Least Squares Meaning

• 23:12

  Calculating Residual Check

• 23:43

  Residual Solution

• 24:15

  Residual Interpretation

• 24:48

  Finding Actual from Residual

• 25:19

  Solution and Algebra

• 26:25

  Residual Plots

• 26:56

  Using Residual Plots

• 27:27

  Linear Model Appropriateness

• 27:58

  Lesson Summary and Preview

• 28:29

  Closing Remarks