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Unformatted text preview: o Line doesnt represent anything useful Regression line o Summarizes the scatter plot Cuts through the middle o Goes through the means of X and Y Goes through the average of X and Y o Minimizes residuals o Lets us make predictions for Y, based on X o E.g., what homicide rate would we predict in the poverty level is 20? o Out predictions are inexact, but they improve our ability to predict than if we had no information ( I have an example hand written if you would like to see it)...
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- Spring '09