Question 921524: In a history class, student take a weekly multiple choice quiz consisting of 6 questions, each with 4 possible answers. If a student randomly guesses at the answer to each question for every quiz, then what is the mean number of correct answers the student will get on each quiz.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a history class, student take a weekly multiple choice quiz consisting of 6 questions, each with 4 possible answers. If a student randomly guesses at the answer to each question for every quiz, then what is the mean number of correct answers the student will get on each quiz.
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Binomial Problem with n = 6 and p(correct) = 1/4
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mean = np = 6(1/4) = 3/2 = 1.5 questions correct
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Cheers,
Stan H.
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