WAEC Mathematics 2018 Question 26

Question 26

Measures of Central Tendency

The mean of 1, 3, 5, 7 and x is 4. Find the value of x.

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

Answer: B (4)

Explanation

1 + 3 + 5 + 7 + x = 20, so x = 4.