Question

The number of pots painted by volunteers for a charity event is used to create the dot plot shown using the data from the doc plot. What is the interquartile range for the number of pots painted?

Answer 1

The interquartile range (IQR) is calculated by finding the difference between the third quartile (Q3) and the first quartile (Q1).

From the dot plot, we can see that the first quartile (Q1) is at 45 and the third quartile (Q3) is at 65.

Therefore, the IQR = Q3 - Q1 = 65 - 45 = 20.

So, the interquartile range for the number of pots painted is 20.