Question 532211: A multiple-choice quiz consists of fifteen questions. Each question has five responses, and only one of the answers is correct. Find the probability of guessing and getting exactly two correct. Round to four decimal places, if necessary.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A multiple-choice quiz consists of fifteen questions. Each question has five responses, and only one of the answers is correct. Find the probability of guessing and getting exactly two correct. Round to four decimal places, if necessary.
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Binomial Problem with n = 15 and p(correct) = 1/5
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P(x = 2) = 15C2*(1/5)^2(4/5)^13 = 0.2309
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Cheers,
Stan H.
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