PREDICTIONAND LINEAR REGRESSION

Regression lines when height scores (X) are plotted against
weight scores (Y) for ten adult males.

195 190 185 180 175 170 165 160 155 150 145 140

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Height (in.) X

180 175 170 165 160 155 150 145 140

180 175 170 165 160 155

150 145 140

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Height (in.) X

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Regression line of X on Y showing extent of error (difference between actual height score and predicted height score).

Height (in.) X

Regression line of Y on X showing extent of error (difference between actual weight score and predicted weight score).