5' (10 points) Events A and B are such that P(A) = 0.2, P(B) = 0.3. If event A happens then it is disjoint from the event B. What is the probability of \"either A or B or both\"? Address the following questions: a What is the probability of \"either A or B\"? provide some justication for your answer. b Recall that P(A|B) x P(B) = p(A and B). The statement that \"P(A|B) = P(B|A)\" whenever A and B are independent events\" is (Circle: TRUE / FALSE). Justify your