Chance calculation.
#3
I asked my older brother who has a major in maths. You had to use Ncr apparently.


It would be: P(2 red marbles) = (3 Ncr 2) x (7 Ncr 3) divided by 10 Ncr 5 = 0,417

5/12th is correct: 0,41666666 etc.e

You took the long road haha.

Thanks anyways Cheese
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Messages In This Thread
Chance calculation. - by Zealord - 11-01-2012, 12:57 PM
RE: Chance calculation. - by Adman - 11-01-2012, 01:24 PM
RE: Chance calculation. - by Zealord - 11-01-2012, 01:37 PM
RE: Chance calculation. - by Adman - 11-01-2012, 01:40 PM

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