In this exercise, you'll visually diagnose whether a model is overfitting or underfitting the training set.
For this purpose, we have trained two different models \(A\) and \(B\) on the auto dataset to predict the
mpg consumption of a car using only the car's displacement (
displ) as a feature.
The following figure shows you scatterplots of
displ along with lines corresponding to the training set predictions of models \(A\) and \(B\) in red.
Which of the following statements is true?