Saved Bookmarks
| 1. |
radhe and vishnu appear in an interview for two vacancies in the same post. the probability of radhe's selection is (2/7) and the probability of vishnu's selection is(2/5) . what is the probability that only one of them selected. |
|
Answer» LET A be the event of HUSBAND getting selected. P(A) = 1/4 P( not A) = 3/4 Let B be the event of wife getting selected. P(B) = 1/3 P( not B) = 2/3 Now let E be the event of one of them getting selected P(E) = P(A) P( not B) + P(B) P( not A) = 1/4 x 2/3 + 1/3 x 3/4 = 5/12 |
|