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Tool: The Centroid and the Regression Line
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Go to: http://illuminations.nctm.org/index_d.aspx?id=457 (opens a new window)
Description: Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the properties of the centroid and the regression line.
Technology Type: Java Applet 
Author: NCTM: Illuminations
Language: English 
Cost: Does not require payment for use

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