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JAMB Mathematics 2013 Question 43

Question 43

Measures of Central Tendency

The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18, find the mode.

  1. A.14
  2. B.2
  3. C.6
  4. D.8
Show the answer and explanation

Answer: D (8)

Explanation

The seven numbers total 70 and the six given add to 62, so the seventh is 8. Then 8 appears twice, making it the mode.