A biology quiz consists of ten multiple-choice questions

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A biology quiz consists of ten multiple-choice questions. Seven must be answered correctly to receive a passing grade. If each question has five possible answers, of which only one is correct, what is the probability that a student who guesses at random on each question will pass the examination? (Round your answer to four decimal places.)

Please help showing the expression in a T1-83.

Reference no: EM13642747

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