Which of the following could represent the question: How many 4/9s are in 6/5 as a multiplication equation? x*4/9=6/5
x*6/5=4/9
6/5*4/9=x
4/9*6/5=x

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).