2.4 Box plots
Problem 1
The following are boxplots of the numbers of hits at a certain website for the different days of the week.
1. Which days had outliers?
- Sunday
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
2. Which day had the largest median?
3. Which day had the largest 3rd quartile?
4. Less than 25 percent of Thursdays had a higher number of hits than the busiest Saturday.
- True
- False
Correct Answers
- DFG
- Wednesday
- Monday
- False
Problem 2
Consider the following box and whisker plot. Find the indicated values of the represented data.
- Minimum:
- First quartile:
- Median:
Correct Answers
- 24
- 37
- 46
Problem 3
Consider the following box and whisker plot. Match the letters with the values.
- X
- Y
- Z
- Mean
- Q1
- Max
- Right Pivot
- Q3
Correct Answers
- B
- C
- E
Problem 4
The boxplot below represents annual salaries of attorneys in thousands of dollars in Los Angeles.
About what percentage of the attorneys have salaries between $152,000 and $252,000?
- 10
- 30
- 35
- 50
- None of these
Correct Answers
50
Problem 5
A boxplot for a set of data is given below. Find the five-number summary.
Find the minimum:
Find Q1:
Find the median:
Find Q3:
Find the maximum:
Correct Answers
Minimum: 4
Q1: 10
Median: 25
Q3: 29
Maximum: 40