Q8 Regression [4 marks] Suppose we want to do linear regression based on the following training dataset: { (2, 4.1), (-0.5, 1.3), (-2, -9) }, where each pair (x, t) gives the target value t for a given input value r. (a) Write down the form of the linear regressor. [1] (b) Write the error function E(w) for this linear regressor based on the training dataset. [3]