Posted by Jennifer W. on Monday, May 27, 2013 at 11:47am.
Please help. I didn't get the right answer with this before.
A mathematics journal has accepted 14 articles for publication. However, due to budget restraints, only 7 articles can be published this month. How many specific ways can the journal editor assemble 7 of the 14 articles for publication?
Possible answers:
14
3,432
98
17,297,280

Statistical probability411  MathMate, Monday, May 27, 2013 at 12:08pm
14C7=14!/(7!7!)
! means factorial
7!=7×6×5×4×3×2×1

Statistical probability411  MathMate, Monday, May 27, 2013 at 12:10pm
If order is not important
14C7=14!/(7!7!)
! means factorial
7!=7×6×5×4×3×2×1
If order is important, which is not explicit in the question, then the answer is
14P7=14!/7!
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