SOLUTION: On a 5 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one question wrong?
Give answer as a fraction
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Give answer as a fraction
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Question 712967: On a 5 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one question wrong?
Give answer as a fraction Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! On a 5 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one question wrong?
Give answer as a fraction
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Binomial Problem with n = 5 ; p(correct) = 1/5 ; p(wrong) = 4/5
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P(at least one wrong) = 1 - p(all correct) = 1 - (1/5)^5 = 0.99968
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Cheers,
Stan H.
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