QUESTION 7 Which one of the following statements is correct? O a. P(AC U BC) = P(A") + P(B") + P(A'nBC) O b. P(ACU BC) = P(A") + P(BC) - P(A'nBC) O c. P(ACU BC) = P(A) + P(B) - P(AnB) O d. P(AC U BC) = P(AC) + P(B) - P(AnB) QUESTION 8 Let A and g be independent events, with P(A) = 0.3,P(B) = 0.4. What is P(A U B) ? O a. 0.7 O b. 0.58 O c. 0.65 O d. 0.82 QUESTION 9 Which one of the following statements is true for disjoint events A and B? Please note: when a question is written like this, the use of the word and can be assumed to just be the usual English word and. If I meant the logical and, I would write A n ; in the question. O a. P(An B) = P(A) + P(B) O b. P(A UB) = 1 O C. P(A) = 1-P(B) O d. P(AUBC) = 1- P(B)