Question

Which of the following is true for two independent events X and Y?

(a) E(XY) = E(X) + E(Y)
(b) E(XY) = E(X)E(Y)
(c) E(XY) = E(X) - E(Y)
(d) E(XY) = E(X)/E(Y)
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Answer 1

Answer:

B. is the correct answer