Machine Learning, Data Science, Overfitting, Underfitting.
(by analogy, we can draw an ideal straight line (degree=1) through 2 points, an ideal parabola (degree=2) through 3 points, and so on). By getting 10 times more data, the size of our train set is now 140 data points. To perfectly match these data, we need a 139-degree polynomial! Note, that if we