1.9 For the data set (u, 1), (v,2), (w, 3) find the least squares approximation y= ax + b. u = 10 V = 10 W = 20 For the data set X = (u,v, w) find the mean value E(X) and the Variance Var(X). For the data set Y = (u, v, y) find y such that the Variance Var(Y) = (u - v)²/6.

Fig: 1