8 6 4 2 Do 4 6 LU N 3. What is the solution of the linear system of equations? (Both axes have a scale of one and don't put any spaces in your answer.) Use coordinate form! (x, y)​

The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).