Question 746085
You have a ten question multiple choice test in your next class and you did not study at all. Each question has four choices and only one correct answer. You are going to guess on each question. What is the probability that you score at least a 20% on the test? 
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Binomial Problem with n = 10 and p(correct) = 1/4
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P(2<= x <=10) = 1 - P(0<= x <=1) = 1-binomcdf(10,1/4,1) = 0.756
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Cheers,
Stan H.
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