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What is the median score?

Mathematics
WAEC 1989

For a class of 30 students, the scores in a Mathematics test out of 10 marks were as follows;


4,5,7,2,3,6,5,5,8,9,5,4,2,3,7,9,8,7,7,7,3,4,5,5,2,3,6,7,7,2

What is the median score?

  • A. 2
  • B. 4
  • C. 5
  • D. 6
  • E. 7
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Correct Answer: Option C
Explanation

If the data is arranged either in ascending or descending order, the 15th and 16th scores are in the middle, which is 5 and 5, respectively

median = \(\frac{5 + 5}{2}\) = 5 since n is even i.e, 30


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