Suppose that the growth rate of children looks like a straight line if the height of a child is observed at the ages of 24​ months, 28​ months, 32​ months, and 36 months. if you use the regression obtained from these ages and predict the height of the child at 21​ years, you might find that the predicted height is 20 feet. what is wrong with the prediction and the process​ used?
