SOLUTION: An unprepared student makes random guesses for 6 multiple choice questions that have selections a - e. Find the probability that there is at least one correct answer.
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Question 602666: An unprepared student makes random guesses for 6 multiple choice questions that have selections a - e. Find the probability that there is at least one correct answer. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! An unprepared student makes random guesses for 6 multiple choice questions that have selections a - e. Find the probability that there is at least one correct answer.
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Binomial Problem with n = 6 and P(correct) = 1/5
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P(1<= x <=6) = 1 - P(x = 0)
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= 1 - 6C0*(1/5)^0*(5/6)^6
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= 1 - 0.3349
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= 0.6651
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Cheers,
Stan H.
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