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JAMB Mathematics 2020 Paper

Question : 3

Total: 40

Solution:

Concept:

The median is the middle value of an ordered data set. For an even number of terms, it is the average of the two central numbers.

Explanation:

First, arrange the numbers in ascending order:

89, 100, 108, 119, 120, 130, 131, 131, 141, 161

There are

10

numbers, so the median is the average of the

5

th and

6

th values.

5

th value

= 120

6

th value

= 130

Median

= \frac{120 + 130}{2} = \frac{250}{2} = 125

Answer:

125

(Option B)

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