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B А 1 2 3 4 4 1 1 3 10 2 3 10 w 1 10 4 -19 - 3 10 10 10 4 30 3 10 5. Above is the joint mass function of two random vari
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B А 1 2 3 4 4 1 1 3 10 2 3 10 w 1 10 4 -19 - 3 10 10 10 4 30 3 10 5. Above is the joint mass function of two random vari
B А 1 2 3 4 4 1 1 3 10 2 3 10 w 1 10 4 -19 - 3 10 10 10 4 30 3 10 5. Above is the joint mass function of two random variables A and B. The entries P(A = a, B = b) are either 0 or 1/10. a) Fill in the blanks. Don't forget the corners. You may put 0 or 1 inside the square for simplicity. b) Find E(A), E(A2), and Var(A) c) Find E(B), E(B%), and Var(B) d) Find E(AB), Cov(A,B), and P(A,B) e) Are the random variables independent?
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