I have an expression for a conditional probability with the following term:

N!/n!(N-n)!

I can't remember how to simplify this i know that it is (N choose n )*1/n! but can it be simplified further?

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- March 18th 2011, 11:12 PMulysses123simplifying an expression
I have an expression for a conditional probability with the following term:

N!/n!(N-n)!

I can't remember how to simplify this i know that it is (N choose n )*1/n! but can it be simplified further? - March 18th 2011, 11:16 PMmatheagle
is

so I don't know what you're asking, why don't you state the entire problem. - March 18th 2011, 11:40 PMulysses123
Yes its N choose n, i got it now i was confusing myself after looking at the problem for a while