The inter quartile range of a distribution is 7. If the 25th percentile is 16. Find the upper quartile

Given:

Inter quartile range(IQR) of a distribution = 7

25th percentile = 16

To find:

The upper quartile.

Solution:

We have,

IQR = 7

25th percentile = lower quartile = 16

We know that,

IQR = Upper quartile - Lower quartile

Let the upper quartile be .

Using the above formula, we get

Adding 16 on both sides, we get

Therefore, the upper quartile of the distribution is 23.

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