(Solved) An Excel printout of some descriptive statistics for a set of data is shown below. What is the IQR?

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 Question :

An Excel printout of some descriptive statistics for a set of data is shown below. What is the IQR? 

Options:-

A) 15.5

B) 38

C) 5.5

D) 15


Explanation :-

IQR (Interquartile range) : IQR is a measure of where the middle fifty percent data is in a data set. 

IQR is defined as first quartile(Q1) subtracted from third quartile(Q3). 

IQR = Q3 - Q1

Here five number summary of data is given in question. We can calculate IQR from it. 

From five number summary, 

First quartile (Q1) = 5

Third quartile (Q3) = 20.5

IQR = Q3 - Q1

IQR = 20.5 - 5

IQR = 15.5



Comment below if you still have any queries. 

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