fx y 15 for x 1 y 2 25 for x 2 y 2 25 for x 1 y 3 Ca

f(x, y) = {

1/5 for x= 1, y = 2

2/5 for x = 2, y = 2

2/5 for x = 1, y = 3

}

Calculate the corr(x,y)

I keep getting the wrong answer for some reason when I use my E(x) = 1.4, E(y) = 2.4, E(x,y) = 3.2, var(x) = .24 and var(y) = -.048

Could someone please help me figure this out? Thank you very much.

(1;2)