SOLUTION: some none or all 6 items how many different selections can be made

Question 887085: some none or all
6 items
how many different selections can be made

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
some none or all
6 items
how many different selections can be made
-----------
None --> 1
1 --> 6
2 --> 6*5/2 (assuming AB is the same as BA) = 15
3 --> 6*5*4/(3*2*1) = 20
4 --> 6*5*4*3/(4*3*2*1) = 15
5 --> 6
6 --> 1
------------
--> 64 total
(= 2^6)

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