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JAMB Economics 2011 Objective — Question 9

Question 9 of 49 from the Joint Admissions and Matriculation Board (JAMB) Economics 2011 Objective paper, with the correct answer and a full explanation.

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A major disadvantage of the arithmetic mean is that it is

  • A. A. not suitable for further statistical analysis
  • B. B. cumbersome to determine the actual value
  • C. C. affected by extreme dataCorrect
  • D. D. not useful for large data

Explanation

The mean is usually affected by extreme values - when a value in a distribution is too high or too small, it affects the mean value and makes it a biased representative.

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