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The number of pages in text books of different subjects are 421, 175, 128, 117, 150, 145, 147 and 113 find median of given data

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Given data : 

421, 175, 128, 117, 150, 145, 147, 113 

Arrange the given observations in ascending order

In eight observations the 4th and 5th observations are 145 and 147. 

Here, we have two middle most values 145 and 147. 

Median = Average of the two middle most values

\(\frac {145+147}{2} = \frac {292}{2} = 146\)

∴ Median of the data = 146.

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