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GATE 2023 BM – Question 11

Engineering Mathematics · Probability and Statistics · 1 mark · Multiple choice

Find the difference between the mean and median of the dataset 1, 2, 3, 4, 6, 8.

  1. 0
  2. 1
  3. 0.5
  4. 0.25

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Correct answer: (C) 0.5

Explanation

The sum is twenty-four over six observations, so the mean is four. For an even-sized sorted dataset, the median is the average of the third and fourth observations: (3+4)/2=3.5. Their difference is 4−3.5=0.5, option C.

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