SOLUTION: There are 4 boys and 5 girls who are hoping to be selected for a school quiz team. Two of them are selected at random to be in the team. What is the probability that at least 1 gir

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Question 1196578: There are 4 boys and 5 girls who are hoping to be selected for a school quiz team. Two of them are selected at random to be in the team. What is the probability that at least 1 girl is chosen?
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
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The probability that no one girl is chosen equals  C%5B4%5D%5E2%2FC%5B4%2B5%5D%5E2%29 = C%5B4%5D%5E2%2FC%5B9%5D%5E2 = 6%2F36 = 1%2F6

    (because under this assumption, we chose 2 boys from 4 boys among 9 people).



THEREFORE, the probability that at least 1 girl is chosen 

equals to the COMPLEMENTARY probability  1 - 1%2F6 = 5%2F6.    ANSWER

Solved.