Question 3 If you are required to evaluate the accuracy of a bagging regression predictor, what should you do? O Use the bootstrap to obtain multiple bagging predictions and then average over them. O Compute the standard error of the average predictions of each regression tree. O Use the bootstrap to obtain multiple average predictions for each regression tree and then average over them. O Compute the average of the standard error of the point predictions of each regression tree. O Compute the standard error of the point predictions of each regression tree