Question

What is the inter-quartile range of the given data set?



2
3
6

Answer 1

Inter-quartile range = 3 .

Explanation:

Given : diagram with data.

To find : What is the inter-quartile range of the given data set.

Solution : We have given data .

We can see from the given data lowest value of data is 15 .

highest value of data = 21.

First quartile ( Q1) = 17

Second quartile (Q2) =18

Third quartile (Q3) = 20.

Inter-quartile range = Third quartile (Q3) - First quartile ( Q1) .

Inter-quartile range = 20 - 17

Inter-quartile range = 3 .

Therefore, Inter-quartile range = 3 .