Khan Academy
Khan Academy: Statistics: R Squared or Coefficient of Determination
Video reviews the basics of the regression line, then shows how the formula for the coefficient of determination or r squared is derived. Explains how to interpret the coefficient of determination. [12:41]
Imagine Learning Classroom
Learn Zillion: Lesson Video for 'Understand the Least Squares Regression Line'
In this lesson, you will learn the importance of the least squares regression line by comparing residuals. [7:10]
Khan Academy
Khan Academy: Linear Regression and Correlation: Calculating R Squared
Video shows using a spreadsheet to demonstrate calculating the coefficient of determination or r-squared. Also explains how to interpret the value of r-squared.
Khan Academy
Khan Academy: Using a P Value to Make Conclusions in a Test About Slope
Making conclusions in a hypothesis test about the slope of a least-squares regression line.
Khan Academy
Khan Academy: Confidence Interval for the Slope of a Regression Line
Confidence interval for the slope of a regression line.
Khan Academy
Khan Academy: Calculating T Statistic for Slope of Regression Line
Calculate the test statistic in a test about the slope of a regression line.
Crash Course
Crash Course Statistics #32: Regression
Using the framework of the General Linear Model, the Regression Model is explained. Points discussed include the following: Regression Line, Residual Plot, F Test.
Sophia Learning
Sophia: Multiple Regression: Lesson 3
This lesson will introduce multiple regression. It is 3 of 3 in the series titled "Multiple Regression."
Sophia Learning
Sophia: Multiple Regression: Lesson 1
This lesson will introduce multiple regression. It is 1 of 3 in the series titled "Multiple Regression."
Sophia Learning
Sophia: Multiple Regression: Lesson 2
This lesson will introduce multiple regression. It is 2 of 3 in the series titled "Multiple Regression."