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JAMB 1983 · UME · Q1

If MM represents the median and DD the mode of the measurements 5, 9, 3, 5, 8, then (M,D)(M, D) is

Worked solution (try it first)
  1. Put the measurements in order: 3, 5, 5, 8, 9.
  2. There are 5 values, so the median is the 3rd one: M=5M = 5.
  3. The mode is the value that occurs most often: 5 appears twice, so D=5D = 5.
  4. So (M,D)=(5,5)(M, D) = (5, 5), option D.

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