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AMC 10 2017b Problem 9

  • Paper

A radio program has a quiz consisting of 33 multiple-choice questions, each with 33 choices. A contestant wins if he or she gets 22 or more of the questions right. The contestant answers randomly to each question. What is the probability of winning? (A) 127(B) 19(C) 29(D) 727(E) 12\textbf{(A)}\ \frac{1}{27} \textbf{(B)}\ \frac{1}{9} \textbf{(C)}\ \frac{2}{9} \textbf{(D)}\ \frac{7}{27} \textbf{(E)}\ \frac{1}{2}

Dataset text NuminaMath-1.5. Quoted with source.

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\frac{7}{27}

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