Question 464848: a student takes a 20 question, multiple choice exam with five choices for each question. if the student is guessing, find the following probabilities getting less than 5 questions right
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! a student takes a 20 question, multiple choice exam with five choices for each question. if the student is guessing, find the following probabilities getting less than 5 questions right
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Binomial Problem with n = 20 and p = 1/5
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P(0<= x <=4) = binomcdf(20,0.2,4) = 0.6296
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Cheers,
Stan H.
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