SOLUTION: You are taking a quiz with 10 multiple choice questions and each questions has 4 possible answers. If you assume that the questions are independent, what is the standard deviation

Question 324839: You are taking a quiz with 10 multiple choice questions and each questions has 4 possible answers. If you assume that the questions are independent, what is the standard deviation for quiz scores?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You are taking a quiz with 10 multiple choice questions and each questions has 4 possible answers. If you assume that the questions are independent, what is the standard deviation for quiz scores?
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Binomial Problem with n = 10 and p = 1/4
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standard deviations = sqrt(npq) = sqrt(10*1/4*3/4)
= sqrt(1.3693)
= 1.1702
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Cheers,
Stan H.
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