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Question

Find the median for the following data.

7, 8, 9, 9, 10, 9, 7, 4

A
7.5
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B
9.5
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C
10.5
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D
8.5
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Solution

The correct option is D 8.5
After arranging the data we get,

4, 7, 7, 8, 9, 9, 9, 10

Here we have 8 items. The value of N is 8 (even).

Therefore, median is the average of the two middle terms, which are 8 and 9.

Median = (8+9)2
= 8.5

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