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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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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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