SOLUTION: how many different groups of two can be made out of twelve students, and how can i chart it.

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Question 253731: how many different groups of two can be made out of twelve students, and how can i chart it.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
12*11/2=6*11=66
list all 12 with the 11 options. and eliminate reverse duplicates.
Good luck. There are 66