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WAEC Mathematics 2019 Paper

Question : 48

Total: 50

Solution:

Concept:

The median is the central value of a set of scores when they are arranged in ascending order.

Explanation:

List all the given scores in order from the smallest to the largest.

When there is an even number of scores, the median is the average of the two middle scores.

Here, the two middle scores are

13

and

14

Median

= \frac{13 + 14}{2}

= \frac{27}{2}

= 13.5

Answer:

13.5

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