Khan Academy
Khan Academy: Statistics: 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. [9:45]
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]
Sophia Learning
Sophia: Extrapolating Data: Lesson 1
This lesson demonstrates how to extrapolate from a data set. It is 1 of 7 in the series titled "Extrapolating Data."
Sophia Learning
Sophia: Using Lines of Best Fit for Estimations: Lesson 1
This lesson explains that lines of fit are estimations and may differ. It is 1 of 3 in the series titled "Using Lines of Best Fit for Estimations."
Virtual Nerd
Virtual Nerd: What's Positive Correlation?
Learn about positive correlation by watching this tutorial. [1:06]
Virtual Nerd
Virtual Nerd: What's Negative Correlation?
Learn about line-of-fit, negative slope, and negative correlation by watching this tutorial. [1:02]
Khan Academy
Khan Academy: Statistics: Squared Error of Regression Line
Video is the first of five related videos about deriving the formula for the least squares regression line. This first video simply shows what the least squares regression line is and gives a basic illustration and generalized formula...
Khan Academy
Khan Academy: Orthogonal Projections: Another Least Squares Example
This is a video lesson on using the least squares approximation to find the line of best fit for a set of points. Includes a concrete example dealing with a set of 4 points.
Sophia Learning
Sophia: Line of Best Fit/ Trend Lines
Explore the line of best fit and when and how it is used. Check understanding with quiz.
Imagine Learning Classroom
Learn Zillion: Write an Equation for Line of Best Fit
In this video, you will learn how to write an equation for a line of best fit by identifying the y-intercept and slope. [5:08]
Imagine Learning Classroom
Learn Zillion: Interpret the Slope of a Line of Best Fit
In this lesson, you will learn to interpret the rate of change of a line of best fit by calculating the slope. [4:09]
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: Algebra: Fitting a Line to Data
This video utilizes Microsoft Excel to demonstrate how to plot data in the form of a scatter plot and then create a line of best fit. It also shows how to make a prediction based on the linear progression of the data. The software does...
Khan Academy
Khan Academy: Estimating the Line of Best Fit
In this video lesson, students estimate the line of best fit from a scatter plot. [1:16]
Khan Academy
Khan Academy: Interpreting a Trend Line
In this video lesson students learn to use a line of best fit to interpret data from a scatter plot.
Khan Academy
Khan Academy: Equation of a Line: Fitting a Line to Data
This video utilizes Microsoft Excel to demonstrate how to plot data in the form of a scatter plot and then create a line of best fit.
Other
Mario's Math Tutoring: Line of Best Fit Equation
Learn how to approximate the line of best fit and find the equation of the line. We go through an example in this free math video tutorial [3 mins, 17 secs] by Mario's Math Tutoring.
Sophia Learning
Sophia: Extrapolating Data: Lesson 2
This lesson demonstrates how to extrapolate from a data set. It is 2 of 7 in the series titled "Extrapolating Data."
Sophia Learning
Sophia: Extrapolating Data: Lesson 7
This lesson demonstrates how to extrapolate from a data set. It is 7 of 7 in the series titled "Extrapolating Data."
Sophia Learning
Sophia: Using Lines of Best Fit for Estimations: Lesson 2
This lesson explains that lines of fit are estimations and may differ. It is 2 of 3 in the series titled "Using Lines of Best Fit for Estimations."
Khan Academy
Khan Academy: Estimating the Line of Best Fit Exercise
Demonstrates how to find the line of best fit for a scatter plot. [1:17]