From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. What is the probability of having 3 man in committee ?
Choices.
A) 10/36
B) 11/72
C) 12/72
D) 28/36
E) 36/90
We may have (3 men and 2 women) = (7C3 x 6C2) = 525   or (4 men and 1 woman) = (7C4 x 6C1) = 210   or (5 men only) = (7C5) = 21   Required ways = 756   Probability of having 3 man in committee = 525 / 756 =28/36   ans - 28/36
<result>D</result>
From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. What is the probability of having 3 man in committee ?