A student takes an exam that consists of 10 multiple-choice questions. Each question has five possible answers.
Question:
A student takes an exam that consists of 10 multiple-choice questions. Each question has five possible answers. Suppose the student knows nothing about the subject and just guesses the answer on each question. What is the probability that this student will answer four out of the 10 questions correctly?
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Related Book For 
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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