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
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I am not sure what formul
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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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