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  9. Q126

CGPSC 2011 · Question 126 of 146

If the median of the distribution 10, 12, 13, 16, x, 20, 25, 30 is 18, then the value of x is

Statistics

  1. A18
  2. B16
  3. C20Correct
  4. D22

Answer: C. 20

Explanation

For 8 ordered observations the median is the mean of the 4th and 5th: (16 + x)/2 = 18, so x = 20.

Source: CGPSC PCS Prelims 2011 GS Paper, solved paper via iasexamportal.com

← Q125View full paper (146 questions)Q127 →

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