3. Random variables X and Y have joint PDF S Ary 0
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![3. Random variables X and Y have joint PDF
S 4ry 0<x < 1,0 < y < 1
fx.x(r, y) = {
otherwise
a) What are E[X] and Var[X]?
b) What are E[Y] and Var[Y]?
c) What is Cov[X,Y]?
d) What is E[X +Y] ?
e) What is Var[X +Y] ?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb0a1ae89-ca0f-4cea-83a7-8008b28b0ba7%2F3233ceae-8bb7-439b-b810-f84628e5e518%2F1dh5oy_processed.png&w=3840&q=75)
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