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A multiple-choice exam consists of 20 questions, each with 5 possible answers listed, of which
only one is correct. If a student knew none of the correct answers and resorted to guessing (i.e: a
student totally ignorant of the subject matter), then
d) if a score of at least 10 correct answers is necessary for a passing grade, what is the probability
that the student would pass by guessing?

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A multiple-choice exam consists of 20 questions, each with 5 poss.pdf

  • 1. A multiple-choice exam consists of 20 questions, each with 5 possible answers listed, of which only one is correct. If a student knew none of the correct answers and resorted to guessing (i.e: a student totally ignorant of the subject matter), then d) if a score of at least 10 correct answers is necessary for a passing grade, what is the probability that the student would pass by guessing?