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WAEC Mathematics 2021 Question 32

Question 32

Measures of Central Tendency

Find, correct to two decimal places, the mean of 1½, 2⅔, 3¾, 4⅘ and 5⅚.

  1. A.3.71
  2. B.3.70
  3. C.3.69
  4. D.3.72
Show the answer and explanation

Answer: A (3.71)

Explanation

Sum = 1.5 + 2.667 + 3.75 + 4.8 + 5.833 = 18.55. Mean = 18.55 ÷ 5 = 3.71.