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Finding the Least-Squares Line

Author: Jonathan Osters

Source: Graphs created by Author; Headache, Public Domain, http://www.publicdomainpictures.net/view-image.php?image=15614 Calculator, Public Domain http://commons.wikimedia.org/wiki/File:Graphing_calculator.JPG

Video Transcript
Terms to Know
Least-Squares Regression Line

The line of best fit, according to the method of Least-Squares.

x-bar

The mean of the explanatory variable.

y-bar

The mean of the response variable.

Formulas to Know
Slope of Least Squares Line

b subscript 1 space equals space r times s subscript y over s subscript x