SOLUTION: A student takes a 4 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student gets
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Question 494509: A student takes a 4 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student gets exactly 2 questions correct? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A student takes a 4 question multiple choice quiz with 4 choices for each question. If the student guesses at random on each question, what is the probability that the student gets exactly 2 questions correct?
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Binomial Problem with n = 4 and p = 1/4
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P(x = 2) = 4C2(0.25)^2*(0.75)^2 = 0.2109
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Cheers,
Stan H.
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