Statisical Combinations
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Statisical Combinations

[From: ] [author: ] [Date: 12-11-06] [Hit: ]
(n-r)!),......
How many combination of 6 students can be made from a 40 student class?

n!/(n-r)!

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n!/(n-r)! is the formula for a permutation, nPr

here it is 40*39*38*37*36*35

the combination formula is n!/(r!(n-r)!), 40*39*38*37*36*35/(6*5*4*3*2*1)

feed into your calculator or google for ans
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keywords: Combinations,Statisical,Statisical Combinations
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