Mathematics, 23.06.2020 10:57 pickelswolf5938

A multiple-choice examination has 20 questions, each with five possible answers, only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions with an independent random guess. What is the probability that he answers at least seventeen questions correctly? (Round your answer to three decimal places.)

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A multiple-choice examination has 20 questions, each with five possible answers, only one of which i...