(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] what's wrong with this

nPr= n!/(n-r)! and here in permutation order is important, and in combination

nCr= n!/( r!(n-r)! ) order is not important, so the propability of ana event will be more for combination from permutation, but permutation is combination times r!, so what is wrong with me and not with my question

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# Homework Help: What's wrong with this

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