The data set represents the number of rings each person in a room is wearing.

0, 2, 4, 0, 2, 3, 2, 8, 6

What is the interquartile range of the data?

First, arrange the data from lowest to highest:

0, 0, 2, 2, 2, 3, 4, 6, 8

Then, find the middle data or the median.

0, 0, 2, 2, 2 (median), 3, 4, 6, 8

Next, find the first and third quartille

0, 0 (Q1), 2, 2, 2 (median), 3, 4, 6 (Q3), 8

Finally, Q1 from Q3 to get the interquartile range (IQR)

IQR = Q3 - Q1 = 6 - 0 = 6