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Mathematics, 28.02.2020 04:21 anatomyfl

A multiple-choice examination has 15 questions, each with five answers, only one of which is correct. Suppose that one of the students who takes exam and answers each of the questions with an independent random guess. What is the probability that he answers at least 10 questions correctly?

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A multiple-choice examination has 15 questions, each with five answers, only one of which is correct...

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