In a class, there are 20 males and 15 females. Three students are selected at random. The probabilit

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28 Feb 2020 Probability

In a class, there are 20 males and 15 females. Three students are selected at random. The probability that 1 female and 2 males are selected, is:

OPtion

1) 21/47
2) 22/25
3) 19/46
4) 23/45
5) 21/44
6) 19/49
7) 20/47
8) 53/60
9) 42/92
10) None of these

Solution

Total Outcomes = 35C3 = 6545

Positive Outcome = 20C2 * 15C1 = 2850
Probability =
570/1309

Correct Option: 10 Best Solution (0)