Problem 4 (Regression Trees. ISL 3.4 [II] points\" 4.i Sketch the tree corresponding to the partition of the predictor space illustrated in the lefthand panel of Figure 1. The numbers inside the boxes indicate the mean of Y within each region. 4.ii Create a diagram similar to the lefthand panel of Figure 1. using the tree illustrated in the righthand panel of the same figure. You should divide up the predictor space into the correct regions, and indicate the mean for each region. X241 D K1 0 2.49 -1 50 033 4.06 0.21 Figure 1: Left: A partition of the predictor space corresponding to part a. Right: A tree corresponding to part be