Jennifer is about to go on a trip to the Bahamas on her boat. She noticed the fish at an elevation below sea level and a bird flying above sea level.
12,500 feet
What is the possible elevation of the boat?
A. 12,500 feet
B. 10,000
C. -10,000 feet
D. O feet

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).