### Home > ACC6 > Chapter 9 Unit 9 > Lesson CC1: 9.2.1 > Problem9-39

9-39.

This problem is a checkpoint for displays of data. It will be referred to as Checkpoint 9A.

For the information in parts (a) and (b), create a histogram. For the information in parts (c) and (d), create a box plot and then identify the quartiles and interquartile range. Homework Help ✎

1. Hours spent on homework by the different students: $0$, $4$, $0$, $1$, $1$, $1$, $\frac { 1 } { 2 }$, $1\frac{1}{2}$, $2$, $2$, $\frac { 1 } { 2 }$, $2$, $2$, $2$, $1\frac{1}{2}$, $1\frac{1}{2}$, $1$, $1$, $2$, $4$, $\frac { 1 } { 2 }$, $\frac { 1 } { 2 }$, $2$

2. Quiz scores: $3,15,18,14,10,14,19,8,14,14,15,19,9$

3. Parent ages: $47,52,50,47,51,46,49,46,48$

4. Test scores: $76,90,75,72,93,82,70,85,80$