For each of the following, (a) through (d), determine the linear prediction rule for predicting criterion variable Y from predictor variable X. Then (e) make a single graph (with values from 0 to 10 on both axes) showing all the regression lines, labeling each by its letter. (Be sure to make your graph large enough so that the lines are clearly separate.)

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Regression Constant a 1.5 100 2.0 9.5 Regression Coefficient b 8 .2 8