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Unit 2

Least-Squares Regression Lines

30 min videoβ€’october 15, 2019

Jerry Kosoff


In part two of a three-part series, we meet Least-Squares Regression Lines. We learn how to use them to make predictions, how to interpret the slope/intercept of the equation, and the meaning and dangers of "extrapolation." Then, we define "residuals" and discuss how to calculate and interpret them in context.