18. A multiple choice exam consists of 6 questions, and each question V2 has 3 possible answers, exactly one of which is correct. Jeb decides to pick the answer to each question at random. What is the probabil- ity that he will get precisely two correct answers? (A) 16/729 (B) 2/3 (C) 1/3 (D) 80/243 (E) 40/243 (F) none of the aboye

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