Multiple Regression

Introduction And Definitions Page 2

(Speaker)

Consider an example in which we measure the percent body fat, height (in inches), and waist size (in inches) of a group of people. What might you expect the simple regression relating percent body fat to height would look like? An example for one sample might be:

Body fat percentage equals 13.012 minus 0.031 times height.

In this example, there is almost no discernible relationship between height and percent body fat. This information could be useful, but suppose we still want to come up with a good model for predicting body fat.