<PRE><B>Question 528255</B>
A student answers all 48 questions on a multiple-choice test by guessing. Each question has four possible answers, only one of which is correct. Find the probability that the student gets exactly 15 correct answers. 
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Binomial Problem with n = 48 and p(correct) = 1/4
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P(x = 15) = 48C15*(1/4)^15*(3/4)^33
= binompdf(48,1/4,15) = 0.0767
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Cheers,
Stan H.
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