In a box-and-whisker plot, what feature represents the range from the first quartile ($Q_1$) to the third quartile ($Q_3$)?

The entire plot from end to end

Displaying Data in a Box-and-Whisker Plot Practice — Grade 9 math

Lesson 54: Displaying Data in a Box-and-Whisker Plot — Practice Questions

1. The number of books read by 7 students over the summer is: 4, 10, 8, 5, 12, 3, 9. What is the median number of books read? ___
2. For the data set {10, 15, 18, 20, 24, 30}, what is the first quartile ($Q_1$)?
- A. 10
- B. 15
- C. 19
- D. 18
3. A triangular piece of fabric has a base of 16 inches and a height of 10 inches. What is the area of the fabric? ___ square inches
4. In a box-and-whisker plot, what feature represents the range from the first quartile ($Q_1$) to the third quartile ($Q_3$)?
- A. The whiskers
- B. The line inside the box
- C. The box
- D. The entire plot from end to end
5. A triangular sign has a base of 6 feet and a height of 4 feet. What is its area?
- A. 24 square feet
- B. 10 square feet
- C. 12 square feet
- D. 20 square feet
6. The number of minutes a student spent on homework each night for a week is: 45, 30, 50, 35, 30, 40, 55. What is the median number of minutes? The median is ___.
7. A box-and-whisker plot is constructed from five key numbers. Which of the following is NOT one of these five key numbers?
- A. Minimum
- B. Median
- C. Mean
- D. Maximum
8. A dataset lists the number of goals scored in several soccer games: 3, 1, 4, 1, 5, 2, 4. What is the maximum value of this dataset? The maximum value is ___.
9. What is the essential first step to correctly find the median of a set of numbers?
- A. Find the average of the two middle numbers
- B. Arrange the data from least to greatest
- C. Identify the largest and smallest values
- D. Remove any duplicate numbers
10. The heights of seven plants in centimeters are: 15, 21, 18, 25, 18, 12, 23. After ordering the data, what is the median height? The median is ___ cm.