Quote:
Originally Posted by Third Eye
If you don't mind me asking, why wouldn't you just do 50C3*50C7/100C10?
Sorry for the different notation, that's just the way I've always seen it.
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I don't mind the question. Starting from the number of elementary outcomes and then grouping them together leads to the same formula, but laying out each step and and using standard terms along the way could be helpful to a reader who wonders where the formula comes from or why there are different terms for related concepts, like permutations and combinations, possibilities and probabilities.