WAEC Mathematics 2015 Objective — Question 28
Question 28 of 50 from the West African Examinations Council (WAEC) Mathematics 2015 Objective paper, with the correct answer and a full explanation.
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The table above shows the distribution of the scores of some students in a test. Calculate the mean score.
- A. 5.6
- B. 6.0
- C. 6.6
- D. 7.0Correct
Explanation
Using the midpoints of the class intervals and their frequencies, mean = Σfx/Σf = 35/5 = 7.0.
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