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MMLU / Ben rolls four fair 20-sided dice, and each of the dice has faces numbered from…

Problem

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question

Ben rolls four fair 20-sided dice, and each of the dice has faces numbered from 1 to 20. What is the probability that exactly two of the dice show an even number?

choices

  1. \frac{5}{24}
  2. \frac{5}{16}
  3. \frac{3}{8}
  4. \frac{5}{8}

subject

high_school_mathematics

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Source and history

Official source

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