Statistical Measures and Displays

Which of the following is an appropriate display to show interest rates over the past 3 weeks?

• A. bar graph

• B. line graph

• C. circle graph    

• D. histogram

Which of the following is an appropriate display to show the heights of adults arranged by intervals?

• F. bar graph

• G. line graph

• H. circle graph

• I. histogram

3. What are the third and first quartiles of the data?

• A. 40, 30

• B. 140, 80

• C. 140, 0

• D. 80, 30

4. What percent of homes were on the market between 40 and 140 days?

• F. 25%

• G. 50%

• H. 75%

• I. 100%

5. What is the mean of the data?

• A. 15

• B. 17.5

• C. 22.5

• D. 25

6. Which of the following describes the shape of the data distribution?

• F. There is a peak at 15.

• H. There is a gap from 25-30.

• G. There is a cluster from 5-15.

• I. It is not symmetric.

Which of the following is true?

• F. the data is not symmetric

• G. peak at 4

• H. no gaps

• I. no mode

Which would you use to describe the spread of the data?

• A. clusters

• B. interquartile range

• C. range

• D. mean absolute deviation

How many cameras cost less than $100?

• F. 2

• G. 7

• H. 8

• I. 18

Which price range has the least frequency?

• A. $0–$99

• B. $300–$399

• C. $100–$199

• D. $400–$499