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by ankurmit » Fri Jul 09, 2010 2:34 am
A basketball coach will select the members of a five-player team from among 9 players, including John and Peter. If the five players are chosen at random, what is the probability that the coach chooses a team that includes both John and Peter?


1/9
1/6
2/9
5/18
1/3
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by italian7745 » Fri Jul 09, 2010 2:55 am
https://www.beatthegmat.com/probability- ... tml#269401 ALREADY DISCUSSED...
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by selango » Fri Jul 09, 2010 2:56 am
If john and peter are included,the probability for both is 1.

So we need to choose 3 players from 7 players.

1*1*7C3=35

5 players can be chosen from 9 players=9C5=126

35/126=5/18
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by ankurmit » Fri Jul 09, 2010 3:03 am
Thanks :)
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