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Tool: Understanding the Least Squares Regression Line with a Visual Model: Measuring Error in a Linear Model
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Go to: http://www.nctm.org/standards/content.aspx?id=26787 (opens a new window)
Description: This tool allows users to explore three methods for measuring how well a linear model fits a set of data points.
Technology Type: Java Applet 
Author: NCTM
Language: English 
Cost: Does not require payment for use

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Courses: Algebra Line of Best Fit
Probability & Statistics Scatterplots, Least-Squares Regression

Teacher Review (Based on classroom experience)
Reviewer: Tanuj, Jan 30 2009 12:39:36:843AM
What did students learn? Concept of Least Squares
Recommended for: Probability & Statistics: Data and Distributions
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