Tina is trying to create a triangular fence for her cows. Her design has the measurements 22 feet, 18 feet, and 38 feet for each side. Will her fence keep the cows in? A. Yes
B. No

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).