SOLUTION: A professor grades homework by randomly checking 9 of the 25 problems assigned. in how many ways can this be done?
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Question 1008928: A professor grades homework by randomly checking 9 of the 25 problems assigned. in how many ways can this be done? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A professor grades homework by randomly checking 9 of the 25 problems assigned. in how many ways can this be done?
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Ans: 25C9 = 2042975 ways
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Cheers,
Stan H.
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