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JAMB Economics 2010 Question 6

Question 6

Tools of Economic Analysis

The mean is the best measure of central tendency because it

  1. A.is not affected by extreme values in a data
  2. B.is a midpoint value in an array of data
  3. C.is a balancing point in an observation
  4. D.can be calculated from incomplete data.
Show the answer and explanation

Answer: C (is a balancing point in an observation)

Explanation

The mean uses every value, so the deviations above and below it balance out to zero. It is affected by extreme values, and the midpoint is the median.