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PhET Interactive Simulations University of Colorado Boulder
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Least Squares Regression
This interactive simulation gives the opportunity for students to explore Least-Squares Regression. There are a number of different options available from the drop-down menu or students can plot their own points. Students then use the sliders to add their own line of best fit, residual lines and squared residuals calculations in an attempt to reduce the sum of the squares as best they can. Students can compare their best efforts with the calculated line. The computer calculates the correlation coefficient.
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