The weights of nine different cats in pounds were used to create the box plot above. which of the following is the interquartile range of the set of weights?
a. 11
b. 3
c. 1.5
d. 7

the answer is B: 3

Step-by-step explanation:

you look at the verticle line on the left side of the box which represents the lower quartile then to the right of the verticle line represents the upper quartile

To find the interquartile range, subtract the lower quartile, 9.5, from the upper quartile, 12.5

12.5 - 9.5 = 3