Question

(7) The events A and B are mutually exclusive (disjoint). If P(A) = 0.7 and P(B) = 0.2, what is P(A or B)?
A) 0.14 B) 0 C) 0.9 D) 0.5
(8) The events A and B are mutually exclusive (disjoint). If P(A) = 0.2 and P(B) = 0.1, what is P(A and B)?
A) 0.02 B) 0 C) 0.5 D) 0.3
(9) A probability experiment is conducted in which the sample space of the experiment is S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}. Let event A = {6, 7, 8, 9} and event B = {8, 9, 10, 11, 12}. Assume that each outcome is equally likely. List the outcomes in A and B. Are A and B mutually exclusive (disjoint)?
A) {8, 9}; no B) {8, 9}; yes C) {6, 7, 8, 9, 10, 11, 12}; no D) {6, 7, 8, 9, 10, 11, 12}; yes

Answer 1

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