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OpenStudy (anonymous):
Suppose that 3 items will be chosen from a group with 4 total items. Given that order does not matter, how many different ways can the items be chosen? Enter a number like 5.
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OpenStudy (anonymous):
nCr(4,3) = 4!/3!1! = 4
OpenStudy (anonymous):
i think 12 but i dont think im right
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