SOLUTION: Please help me solve this problem: If there are 13 true/false questions on a test and 6 of them are false. How many different answer keys are possible? I am not sure what formul

Question 517762: Please help me solve this problem: If there are 13 true/false questions on a test and 6 of them are false. How many different answer keys are possible?
I am not sure what formula to use for this question. Thank you
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Please help me solve this problem: If there are 13 true/false questions on a test and 6 of them are false. How many different answer keys are possible?
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I guess you are saying you don't know which 6 are false so you need
to produce an answer key for all possible patterns of 6 false in
13 questions.
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Ans: # of keys = 13C6 = 1716
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Cheers,
Stan H.
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