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AMC 10 2021-fall-a Problem 13

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Each of 66 balls is randomly and independently painted either black or white with equal probability. What is the probability that every ball is different in color from more than half of the other 55 balls? (A) 164(B) 16(C) 14(D) 516(E) 12\textbf{(A) } \frac{1}{64} \textbf{(B) } \frac{1}{6} \textbf{(C) } \frac{1}{4} \textbf{(D) } \frac{5}{16} \textbf{(E) }\frac{1}{2}

Dataset text NuminaMath-1.5. Quoted with source.

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\frac{5}{16}

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