Suppose that Alan is taking a multiple choice quiz where there are 3 choices for each question. Suppose he randomly guesses on 4 questions. What is the probability that he gets none of the 4 questions correct ?
Added by Jessica T.
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Since there are 3 choices for each question, the probability of getting one question wrong is 2/3 (since there are 2 incorrect choices out of 3 total choices). Show more…
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