Suppose that you have a data set sufficiently large that you decide to split the data set into 80% for training and 20% for testing. Suppose further that you consider polynomial regression and obtained training-test curves for each polynomial degree d E {0, 1, 2, 3, 4} , as shown in the following plot. 0.8 - 5.4 10Question 4 2 Based on this information alone, what is the degree of the polynomial you would choose? {Please enter an integer.) Question 5 1 Do you have enough information to provide a good estimate of the generalization error of the hypothesis you chose? ' Yes. ' No. Question 6 1 If so, what would that value be? (Please enter "-1" if the answer to your previous question is "No." OthenNise, enter a single-decimal digit number.)