Algebra-1

Question Analysis
This question tests the student's understanding of how the IQR is represented in a box and whisker plot. The box's length directly corresponds to the IQR.

Key Concept Explanation
In a box and whisker plot, the box extends from Q1 to Q3, and the length of the box is the IQR.

Step-by-step Solution
1. Identify the lower end of the box: 20
2. Identify th...