19. A man and a woman appear in an interview for 2 vacancies in the same post. The prob. of man’s selection is 1/4 and that of woman’s selection is 1/3. What is the probability that none of them will be selected ?
(a) 1/2 (b) 1/12 (c) 1/4 (d) none of these
Answer : (a)
Explanation : No answer description available for this question. Let us discuss.
Probability » Exercise - 111. If A & B are any two events, then the true relation is : (a) P (A ∩B) > P (A) + P (B) - 1 (b) P (A ∩B) < P (A) + P (B) (c) P (A ∩ B) = P (A) + P (B) − P (A ∪ B) (d) none of these