Mario surveys students in the sixth and seventh grades about the number of siblings they have. The double box plot shows the results.

Question

A double box plot.Short description, A double box plot.,Long description,
The plots have a number line that goes from 0 to 8 siblings. Sixth Grade and Seventh Grade each have a box plot above the number line.

Sixth Grade has whiskers that range from 0 to 5 siblings, and the box ranges from 2 to 4 siblings. A line divides the box at 3 siblings.
Seventh Grade has whiskers that range from 1 to 6 siblings, and the box ranges from 2 to 5 siblings. A line divides the box at 4 siblings.

Question
What is the difference in the interquartile ranges for the sixth and seventh grades? Enter the answer in the box.

Response area with 1 text input box

Answer 1

The interquartile range for sixth grade is 1 sibling, and for seventh grade it is 3 siblings. The difference is 2 siblings.

Therefore, the answer is 2.