Question 872052: Of 16 possible books you plan to take 8 with you on vacation, how many different collections of 8 can you bring?
Answer by Edwin McCravy(20054)   (Show Source):
You can put this solution on YOUR website! Of 16 possible books you plan to take 8 with you on vacation, how many different collections of 8 can you bring?
If you have the 8 books in a stack, it does not matter what order
they are stacked in, so this is a COMBINATION problem, not a PERMUTATION
problem.
The is the combination of 16 things taken 8 at a time.
C(16,8) = 12870
On the TI-83 or 84
Press ON
Press CLEAR
Press 16
Press MATH
Press 3
Press 8
Press ENTER
You will see
16 nCr 8
12870
Edwin
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