Applying the Normal Equation 4. (10 points) In this question, we will use L2 loss to fit a multiple regression model with two features, x1 and x2: y = 60 + 0101+ 02.12 The dataset for this model is given below: y bias T2 -1 3 O -2 4 (a) (6 points) Find e = using the formula derived in Lecture 11: 0 = (XTX)-IXTY Explicitly write out the matrix X for this problem and show all steps. a 0 0 1/a 0 0 Hint: 0 b 0 0 1/b 0 0 0 1/c