Let's put more details in the given question to better understand the problem:
Let's now answer the questions:
A. What is the median score of class A?
Based on the given box plot, the median score of Class A is 73.
The answer is 73.
B. What is the interquartile range of class B?
For us to get the interquartile range, we will be using the following formula:
![\text{ Interquartile range = Q}_3\text{ - Q}_1](https://img.qammunity.org/2023/formulas/mathematics/college/w2o5f4op8t518d0u9ment4v8u8y1a52ksg.png)
In the given box plot for Class B, the following are observed:
Q3 = 87
Q1 = 79
Therefore, the interquartile range will be:
![\text{ Interquartile range = 87 - 79 = 8}](https://img.qammunity.org/2023/formulas/mathematics/college/mogcqtztq8u82wkbpboicqbscxtn1tuehw.png)
The interquartile range of Class B is 8.
The answer is 8.