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MMLU / Random variable X is normally distributed, with a mean of 25 and a standard…

Problem

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question

Random variable X is normally distributed, with a mean of 25 and a standard deviation of 4. Which of the following is the approximate interquartile range for this distribution?

choices

  1. 25.00 – 22.30 = 2.70
  2. 27.70 – 22.30 = 5.40
  3. 27.70 ÷ 22.30 = 1.24
  4. 2.00(4.00) = 8.00

subject

high_school_statistics

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