Quiz: Box Plot (Box-and-Whiskers)

Use the box plot below showing the ages of the contestants in a singing competition for questions 1 through 11.

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1. What is the minimum age?
a. 8
b. 10
c. 13
2. What is the maximum age?
a. 19
b. 24
c. 30
3. What is the first quartile?
a. 10
b. 13
c. 15
4. What is the third quartile?
a. 13
b. 15
c. 19
5. What is the median?
a. 13
b. 15
c. 19
6. What is the inter-quartile range?
a. 4
b. 6
c. 14
7. What is the range?
a. 6
b. 14
c. 24
8. What percent of contestants are age 13 or below?
a. 20
b. 25
c. 75
9. What percent of contestants are age 15 or above?
a. 50%
b. 67%
c. 75%
10. About 25 percent of contestants are at or above which age?
a. 13
b. 15
c. 19
11. What percent of contestants are between ages 13 and 24?
a. 75%
b. 80%
c. 85%

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