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Cass is taking a 5 question multiple-choice quiz in which each question has 3 choices. He guesses o all of the questions.
(a) What is the probability that Cass answers all of the questions correctly?
(B) What the probability that he answers 3 questions correctly?

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The required probability is assessed. The probability that Cass answered all questions correctly, and that probability that he answered three questions correctly.

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Cass is taking a 5 question multiple-choice quiz in which each question has 3 choices. He guesses o all of the questions.
(a) What is the probability that Cass answers all of the questions ...

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