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WAEC Mathematics 2013 Question 29

Question 29

Data Presentation

Use the histogram to answer this question. What is the median class?

Diagram for this question
  1. A.60.5 − 70.5
  2. B.50.5 − 60.5
  3. C.40.5 − 50.5
  4. D.30.5 − 40.5
Show the answer and explanation

Answer: B (50.5 − 60.5)

Explanation

Cumulative frequencies: 10 (to 40.5), 22 (to 50.5), 37 (to 60.5). The middle students (24th and 25th of 48) are in the class 50.5 − 60.5.