Hi there. Professor did not help us in understanding this question.

Problem 2: Covariance of Linear Functions of X (20 points) You are given that E[X] = 10 and Var(:r:) = 13. Let Y = 5X 35 Z = 2:1: 3 1. Find Cov(Y,Z) 2. Now let Y, Z be general linear functions of X (i.e. Y = aX + 3)). Find p. Give an intuitive explanation for this result