What is the interquartile range of 6.3, 6.4, 6.5, 6.6, 6.8, 6.8, 7.5

Hello!

First you have to find the median

6.3, 6.4, 6.5, 6.6, 6.8, 6.8, 7.5

The median is 6.6

Next you find quartile 1

quartile 1 is the median of the numbers less than 6.6

6.3, 6.4, 6.5

The median is 6.4

Next you find quartile 3

quartile 3 is the median of the numbers higher than the median

6.8, 6.8, 7.5
gnbhv
The median is 6.8

Then you find the range of quartile 3 and quartile 1

You subtract quartile 1 from quartile 3

6.8 - 6.4 =0.4

The interquartile range is 0.4

Hope this helps!