(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I have a question about the formula for drawing without replacement and considering results to be unordered.

I understand with remembering order it is

n!/(n - k)!

but why do we divide by k! for unordered?

(n is # of different outcome for each draw, k is # of draws)

2. Relevant equations

3. The attempt at a solution

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# Probability question

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