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OpenStudy (anonymous):
How to figure out if a question requires the use of permutations or combinations?
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OpenStudy (anonymous):
If order matters, permutations are required. Also, if the objects are distinguishable, then permutations are required. Example: choosing distinguishable people of a group, two at a time. Combinations example: the lotteries out there, numbers are drawn, but order doesn't matter. Hope that helped.
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