Texas Instruments: Inferences of the Least Squares Regression

Introduction to residuals and least squares regression.

In this lesson, you will learn the importance of the least squares regression line by comparing residuals. [7:10]

The risk of contracting an infection in the hospital is low, but it does happen. Learn what risk factors have the highest correlation with hospital-acquired infections in the final lesson of a three-part series. Using the open source R...

Less is best when looking at residuals. Scholars use an interactive to informally fit a linear regression line to data on a scatter plot. The interactive provides a correct best fit line with residuals and correlation coefficient to...

Create your own scatter plot or use real-world data and try to fit a line to it. Explore how individual data points affect the correlation coefficient and best-fit line.

A tutorial on how to find the line of best fit or least-squares regression line for a set of data in a scatter plot using different methods and calculations.

Video about deriving the formula for the least squares regression line. This final video finishes up the derivation of the formula for line of best fit by solving the system of equations created by the partial derivatives. It finally...

Video is the third of five related videos about deriving the formula for the least squares regression line. This video continues the algebraic manipulation to start deriving the formula by changing the notation to means instead of...

Video is the second of five related videos about deriving the formula for the least squares regression line. This video goes through the algebraic manipulation required at the begining of deriving the formula. [10:35]

Video is the fourth of five related videos about deriving the formula for the least squares regression line. This video shows using partial derivatives and setting them equal to 0 to get closer to deriving the formula for m and b. It...