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Module 1: Regression line

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Making predictions from a regression line

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Core Mathematics - Making predictions from a regression line

Making predictions from a regression line

Regression lines can be used to predict or estimate one variable from
another.

Using a graphing calculator, the least squares regression line for the
previous example on absenteeism and exam scores was found to be: y = -0.74x
+ 93.25

Predict the exam score for a person who was absent for 30 days.

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