Multiple Choice Answers

The _________ can be computed by adding the lower class limit to the upper class
limit and dividing by 2.
A. class midpoint
B. class interval
C. class mark
D. class size

A set of data consists of 83 observations. How many classes would you recommend
for the frequency distribution?
A. 5
B. 6
C. 7
D. 8

A stem-and-leaf display is an alternative to a:

A. histogram
B. frequency distribution
C. frequency polygon
D. horizontal bar chart

A set of data consists of 38 observations. How many classes would you recommend
for the frequency distribution?
A. 4
B. 5
C. 6
D. 8

A _________ is especially useful for depicting nominal level data.
A. bar chart
B. line chart
C. histogram
D. pie chart

A set of data consists of 230 observations between $235 and $567. What class
interval would you recommend?
A. 15
B. 25
C. 45
D. 50

Both the _________ and the _________ allow us to get a quick picture of the main
characteristics of the data.
A. frequency distribution chart, polygraph
B. histogram, frequency polygon
C. pie chart, line chart
D. horizontal bar chart, vertical bar chart