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5. Does order matter? | Crowds | Computer animation | Khan Academy

Isolates the single question that decides which counting formula applies: does the order of the selection change the outcome. Compares a permutation example against a combination example side by side to make the distinction concrete.

Khan Academy Labs · 2 min · Advanced · ANI · Animation · 2016

What you take away

Decide, for a given counting problem, whether to use a permutation or a combination formula.

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