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Least-Squares Regression

Least-Squares Regression

This applet, created by the National Council of Teachers of Mathematics, allows students to explore three methods for measuring "goodness of fit" of a linear model. Users can manipulate both the data and the regression line to see changes in the square error, the absolute error, and the shortest distance from the data point to the regression line. The page outlines different tasks that students to strive to learn. It then asks questions that facilitate discussion based upon these concepts.


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