A multiple choice exam has 5 possible answers only one is


A multiple choice exam has 5 possible answers (only one is correct) for each of the 10 questions.

(a) What is the probability that a student would get 7 or more correct answers just by guessing?

(b) What is the expected number of correct answers a student would get by random guessing?

(c) What is the standard deviation of the number of correct answers by random guessing?

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Business Management: A multiple choice exam has 5 possible answers only one is
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