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Discussion

If the mean and median of a set of numbers are 12 and 15 respectively, then the mode is approximately:

  • A.18
  • B.21
  • C.24
  • D.27

Answer: B

Using the empirical formula: Mode = 3 Median - 2 Mean.

Mode = 3(15) - 2(12) = 45 - 24 = 21.

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