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Chapter 02
1. A frequency distribution for qualitative data groups these data into classes called intervals and
records the total number of observations in each class.
True False
2. The relative frequency of a category is calculated by dividing the category's frequency by the total
number of observations.
True False
3. The percent frequency of a category equals the frequency of the category multiplied by 100%.
True False
4. A pie chart is a segmented circle that portrays the categories and relative sizes of some
quantitative variable.
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.
True False
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- converted.pdf
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Numbers 2nd Edition Jaggia
6. A bar chart may be displayed horizontally.
True False
7. To approximate the width of a class in the creation of a bar chart, we may use this formula:
True False
8. For quantitative data, a relative frequency distribution identifies the proportion of observations that
fall into each class.
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.
True False
10. A histogram is a series of rectangles where the width and height of each rectangle represent the
frequency (or relative frequency) and the width of the class, respectively.
True False
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11. A polygon connects a series of neighboring points where each point represents the midpoint of a
particular class and its associated frequency or relative frequency.
True False
12. An ogive is a graph that plots the cumulative frequency (or the cumulative relative frequency) of
each class above the lower limit of the corresponding class.
True False
13. A stem-and-leaf diagram is useful in that it gives an overall picture of where quantitative data are
centered and how the data are dispersed from the center.
True False
14. A scatterplot is a graphical tool that helps determine whether or not two quantitative variables are
related.
True False
15. When constructing a scatterplot for two quantitative variables, we usually refer to one variable as
x and another one as y. Typically, we graph x on the vertical axis and y on the horizontal axis.
True False
16. When constructing a pie chart, only a few, the most frequent, categories must be included in the
pie.
True False
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DOWNLOAD THE Test Bank for Business Statistics Communicating with
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Chapter 02
1. A frequency distribution for qualitative data groups these data into classes called intervals and
records the total number of observations in each class.
True False
2. The relative frequency of a category is calculated by dividing the category's frequency by the total
number of observations.
True False
3. The percent frequency of a category equals the frequency of the category multiplied by 100%.
True False
4. A pie chart is a segmented circle that portrays the categories and relative sizes of some
quantitative variable.
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.
True False
mynursytest.store
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- converted.pdf
DOWNLOAD THE Test Bank for Business Statistics Communicating with
Numbers 2nd Edition Jaggia
6. A bar chart may be displayed horizontally.
True False
7. To approximate the width of a class in the creation of a bar chart, we may use this formula:
True False
8. For quantitative data, a relative frequency distribution identifies the proportion of observations that
fall into each class.
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.
True False
10. A histogram is a series of rectangles where the width and height of each rectangle represent the
frequency (or relative frequency) and the width of the class, respectively.
True False
mynursytest.store
nd_edition_jaggia_full_chapter
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11. A polygon connects a series of neighboring points where each point represents the midpoint of a
particular class and its associated frequency or relative frequency.
True False
12. An ogive is a graph that plots the cumulative frequency (or the cumulative relative frequency) of
each class above the lower limit of the corresponding class.
True False
13. A stem-and-leaf diagram is useful in that it gives an overall picture of where quantitative data are
centered and how the data are dispersed from the center.
True False
14. A scatterplot is a graphical tool that helps determine whether or not two quantitative variables are
related.
True False
15. When constructing a scatterplot for two quantitative variables, we usually refer to one variable as
x and another one as y. Typically, we graph x on the vertical axis and y on the horizontal axis.
True False
16. When constructing a pie chart, only a few, the most frequent, categories must be included in the
pie.
True False
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