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WAEC Mathematics 1993 Question 44

Question 44

Measures of Central Tendency

The diagram below shows the distribution of marks for a class test. How many students scored less than 7 marks?

Diagram for this question
  1. A.9
  2. B.15
  3. C.18
  4. D.21
  5. E.25
Show the answer and explanation

Answer: B (15)

Explanation

Marks 3, 4, 5 and 6 have 2 + 4 + 3 + 6 = 15 students.