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  • 19-05-2018
  • Mathematics
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A group of 6 people 2 are selected at random how many possibilities are there

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Аноним Аноним
  • 19-05-2018
That would be the number of combinations of 2 out of 6
6C2   = 6! / (4!2!)

A shortcut way of calculating this  is (6*5)/ (2*1)  = 30/2 = 15 answer
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