1. An unbalanced coin is tossed 8 times with the probability of a head equal to 0.70. Let X = # tails. What is the probability that the number of tails is less than the mean? a. 0.0113 b. 0.9887 0. 0.2553 d. 0.5518 e. None of the above 2. If P(A) = .20, P(B) = .30 and P (A U B) = 0.50, then A and B are e. Dependent and disjoint {mutually exclusive) f. Dependent and not disjoint g. Independent and disjoint h. Independent and not disjoint 3. If A and B are independent events with P(A} = .1 and P(B) = .3, then the probability that at least one of the two events occur is f. 0.40 g. 0.03 h. 0.37 i. 0.43 j. None of the above 4. If PM} = 0.60, Ha) = 0.37, and P (A u B} = 0.90, then P(A|B) = 0.1892 0.4737 0.4500 Not enough information is given to answer this question. None of the above peeve