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14. There are 10 questions on a multiple-choice quiz. Each question has four possible answers. Suppose Pitu knows the answer to six of the questions

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14. There are 10 questions on a multiple-choice quiz. Each question has four possible answers. Suppose Pitu knows the answer to six of the questions and guesses the answers to the other four. What is the probability of these events? / /3 /3] (a) Pitu gets at least eight questions right. (b) Pitu gets all 10 questions right

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