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AA 1

Exam Chapter 02
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
1) A frequency distribution for qualitative data groups these data into classes called intervals
and records the total number of observations in each class.
T or F
Answer: True False
2) The relative frequency of a category is calculated by dividing the category's frequency by
the total number of observations.
T or F
Answer: True False
3) The percent frequency of a category equals the frequency of the category multiplied by
100%.
T or F
Answer: True False
4) A pie chart is a segmented circle that portrays the categories and relative sizes of some
quantitative variable.
T or F
Answer: True False
5) A bar chart depicts the frequency or relative frequency of each category of qualitative data
as a bar rising vertically from the horizontal axis. It is also acceptable for the bar to extend
horizontally from the vertical axis.
T or F
Answer: True False
6) A bar chart may be displayed horizontally. T or F
Answer: True False
7) To approximate the width of a class in the creation of a bar chart, we may use this
formula:
T or F
Answer: True False
8) For quantitative data, a relative frequency distribution identifies the proportion of
observations that fall into each class.
T or F
Answer: True False
9) For quantitative data, a cumulative relative frequency distribution records the proportion
(fraction) of values that fall below the upper limit of each class.
T or F
Answer: True False