Weight and IQ Use the weights (x) and IQ scores (y) from the preceding exercise. If a subject weighs 79.380 kg, what is the best predicted IQ score? How does it compare to the actual IQ score of 88 for the subject who weighed 79.380 kg?

Regression and Predictions. Exercises 13–24 use the same data sets as Exercises 13–24 in Section 10-1. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5 on page 466.