exactly the same number? What about him to get totally different number? Suppose P(A)=P(B) = p, and P(AB)-P(A'B'), then how large is p? If the events A and B are independent, prove that A and B', A' and B, A' and B' are all independent. Suppose the events A and B satisfy P(A)=P(B) = 1 3 1 6 P(A|B)= Then P(A'B')=? Suppose the cdf for rv X is www