Answer:
12
Explanation:
The interquartile range is the difference between the lower quartile and the upper quartile
We can find the quartiles at the beginning and the end of the box
At the beginning of the box, we have the lower quartile, while at the end, we have the upper quartile
from what we have ;
The lower quartile is 29 while the upper quartile is 41
So the difference between the two which is the interquartile range is ;
41-29 = 12