Question: A multiple-choice exam has 100 questions, each with five possible answers. If a student is just guessing at all the answers, find the probability that

A multiple-choice exam has 100 questions, each with five possible answers. If a student is just guessing at all the answers, find the probability that they get at least 30 correct. Using the Normal Approximation, what is the probability that they get at least 30 correct?

Does this problem meet the requirements to use the normal approximation (np(p-1)> 10)?

z score =

probability=

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