SOLUTION: You have a multiple-choice exam with 25 questions and each question has 10 choices.What is the probability of getting 5 questions correct by chance alone?

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Question 915422: You have a multiple-choice exam with 25 questions and each question has 10 choices.What is the probability of getting 5 questions correct by chance alone?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(correct) = 1/10 = .1, n = 25
P(x = 5) = normalpdf(25, .1, 5)