SOLUTION: An auditor must audit 12 returns from a collection of 22 flagged items. How many different combinations are possible?

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Question 1191735: An auditor must audit 12 returns from a collection of 22 flagged items. How many different combinations are possible?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
this is 22C12=22!/10!*12!=646,646 combinations