Box and Whisker Plot Questions

B. 5

1. What is the interquartile range for the information shown in the above box and whisker plot? A. 7.5 B. 5 C. 3 D. 2

D.

10. Which box plot represents a situation where 75% of the data is 200 or less?

B. range = 14. IQR = 10

2. For the information shown in the box and whisker plot, what is the range and what is the interquartile range? A. range = 15, IQR = 10 B. range = 14, IQR = 10 C. range = 14, IQR = 9 D. range = 5.5, IQR = 4.5

D. median = 6.5, range = 14, IQR = 10

3. For the information shown in the box plot, what are the median, range and interquartile range? A. median = 6.5, range = 14, IQR = 12 B. median = 6.5, range = 15, IQR = 10 C. median = 7, range = 14, IQR = 10 D. median = 6.5, range = 14, IQR = 10

D. The box plot is correct

4. The high temperatures for Concord, CA, for October 1-15, 2005, are given. Look at the box plot of these data below. What, if anything, is wrong with this box plot? A. The value of the lower quartile is incorrect. B. The median is incorrect C. The value of the upper quartile is incorrect D. The box plot is correct

A. 35

5. The box plot shows the masses, in grams, of several specimens of rock collected by a geologist. What is the range of the masses? A. 35 B. 33 C. 36 D. 12

B.

6. The data set 5, 6, 7, 8, 9, 9, 9, 10, 12, 14, 17, 17, 18, 19, 19 represents the number of hours spent on the internet in a week by students in a math class. Which box plot represents this data?

A.

7. The number of laps around a track for five runners are 14, 8, 7, 4, 12. Display the data using a box plot.

D. 34

8. The performance review for several employees at a company are shown in the box plot. What is the range of the performance review scores? A. 31 B. 36 C. 20 D. 34

D. median or range

9. The box and whisker plot shows the number of hours students in Holly's class spent volunteering last summer. Which of the following would be the most accurate measure of central tendency for the data? A. mean or mode B. mean or median C. mode or range D. median or range

C. Q3 - Q1

The interquartile range is calculated by: A. Finding the middle number or median B. The maximum minus the minimum C. The upper quartile (Q3) minus the lower quartile (Q1) D. Finding the mean of the data

B. 50%

The interquartile range of a box and whisker plot represents what percent of the data? A. 25% B. 50% C. 75% D. 100%

A. 25%

The upper quartile of a box and whisker plot represents what percent of the data? A. 25% B. 50% C. 75% D. 100%