Question

from a group of 4 men, 4 women and 3 children 4 peesons are selected at random find the probability that i) no child is selected ii) exactly 2 men are ​

Answer 1

Answer:

1) 8/11

2) 2/9

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Answer 2

Answer:

(a) is 7/33 (b) 21/55

Step-by-step explanation:

Find the total number of people in the group:

Total = 4 + 4 + 3

Total = 11

Find the probability that no children was selected:

P(No Child is selected) = 8/11 x 7/10 x 6/9 x 5/8

P(No Child is selected) = 7/33

Find the probability that exactly 2 men are selected

P(exactly 2 men) = (4/11 x 3/10 x 7/9 x 6/8) x 4C2

P(exactly 2 men) = (4/11 x 3/10 x 7/9 x 6/8) x 6

P(exactly 2 men) = 21/55

Answer: (a) is 7/33 (b) 21/55