1. The relative
frequency of a class is computed by
A. dividing
the midpoint of the class by the sample size
B. dividing
the frequency of the class by the midpoint
C. dividing
the sample size by the frequency of the class
D. dividing
the frequency of the class by the sample size
E. none
of the above
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2. A frequency
distribution is
A. a
tabular summary of a set of data showing the relative frequency
B. a
graphical form of representing data
C. a
tabular summary of a set of data showing the frequency of items in each of
several non-overlapping classes
D. a
graphical device for presenting qualitative data
E. none
of the above
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Use the above data for
the next 3 questions
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3. The relative frequency
of students working 9 hours or less
A. is
20
B. is
100
C. is
.95
D. is
.05
E. cannot
be determined from the information given
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4. The percent of
students working 19 hours or less is
A. 20%
B. 25%
C. 75%
D. 80%
E. none
of the above
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5. The cumulative
percent frequency for the class of 30-39 is
A. 100%
B. 75%
C. 50%
D. 25%
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6. In constructing a
frequency distribution, as the number of classes are decreased, the class
width
A. decreases
B. remains unchanged
C. increases
D. can increase or decrease depending
on the data values
E. none of the above
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7. A tabular method
which can be used to summarize the data on two variables simultaneously is
called
A. simultaneous equations
B. cross-tabulation
C. a histogram
D. an ogive
E. none of the above
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8. A graphical
presentation of the relationship between two variables is
A. an ogive
B. a histogram
C. either an ogive
or a histogram, depending on the type of data
D. a scatter diagram
E. none of the above
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9. The most common
graphical presentation of quantitative data is a
A. histogram
B. bar graph
C. relative frequency
D. pie chart
E. none of the above
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10. Fifteen percent of
the students in a school of Business Administration are majoring in Economics, 20% in
Finance, 35% in Management and 30% in Accounting. The graphical device(s)
which can be used to present these data is (are)
A. a line graph
B. only a bar graph
C. only a pie chart
D. both a bar graph and a pie chart
E. none of the above
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