JAMB Mathematics 2002 Question 42

Question 42

Measures of Central Tendency

Find the mean of the data: 7, −3, 4, −2, 5, −9, 4, 8, −6, 12

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

Answer: D (2)

Explanation

The ten numbers add up to 20, so the mean is 20 ÷ 10 = 2.