SOLUTION: Students are given a list of ten vocabulary words to learn. In how many ways could four of the words be listed on a test?

SOLUTION: Students are given a list of ten vocabulary words to learn. In how many ways could four of the words be listed on a test?

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Question 41806: Students are given a list of ten vocabulary words to learn. In how many ways could four of the words be listed on a test?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
We say that is "ten chosen four at a time," and can be expressed as 10C4, or
(10!) / [(10-4)!(4!)] =
(10*9*8*7) / (4*3*2*1) =
210
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