SOLUTION: In a 9-question true-false test, find the probability of answering at least 6 questions correctly just by guessing.
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Question 454840: In a 9-question true-false test, find the probability of answering at least 6 questions correctly just by guessing. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! In a 9-question true-false test, find the probability of answering at least 6 questions correctly just by guessing.
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Binomial Problem with n = 9 and p=1/2
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P(6<= x <=9) = 1 - P(0<= x <=5) = 0.2539
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Cheers,
Stan H.
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