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MGMT 1050
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Management

MGMT 1050

All Professors

Winter

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32 Presenting Data in Tables and Charts
CHAPTER 2: PRESENTING DATA IN TABLES AND
CHARTS
TABLE 2-1
An insurance company evaluates many numerical variables about a person before deciding on an
appropriate rate for automobile insurance. A representative from a local insurance agency selected a
random sample of insured drivers and recorded X, the number of claims each made in the last 3 years,
with the following results:
X f
1 14
2 18
3 12
4 5
5 1
1. Referring to Table 2-1, how many drivers are represented in the sample?
a) 5
b) 15
c) 18
d) 50
ANSWER:
d
TYPE: MC DIFFICULTY: Easy
KEYWORDS: frequency distribution
2. Referring to Table 2-1, how many total claims are represented in the sample?
a) 15
b) 50
c) 111
d) 250
ANSWER:
c
TYPE: MC DIFFICULTY: Moderate
KEYWORDS: interpretation, frequency distribution 33 Presenting Data in Tables and Charts
3. A type of vertical bar chart in which the categories are plotted in the descending rank order of the
magnitude of their frequencies is called a
a) contingency table.
b) Pareto diagram.
c) dot plot.
d) pie chart.
ANSWER:
b
TYPE: MC DIFFICULTY: Easy
KEYWORDS: Pareto diagram
TABLE 2-2
At a meeting of information systems officers for regional offices of a national company, a survey was
taken to determine the number of employees the officers supervise in the operation of their departments,
where X is the number of employees overseen by each information systems officer.
X f_
1 7
2 5
3 11
4 8
5 9
4. Referring to Table 2-2, how many regional offices are represented in the survey results?
a) 5
b) 11
c) 15
d) 40
ANSWER:
d
TYPE: MC DIFFICULTY: Easy
KEYWORDS: interpretation, frequency distribution
5. Referring to Table 2-2, across all of the regional offices, how many total employees were
supervised by those surveyed?
a) 15
b) 40
c) 127
d) 200
ANSWER:
c
TYPE: MC DIFFICULTY: Moderate
KEYWORDS: interpretation, frequency distribution Presenting Data in Tables and Charts 34
6. The width of each bar in a histogram corresponds to the
a) differences between the boundaries of the class.
b) number of observations in each class.
c) midpoint of each class.
d) percentage of observations in each class.
ANSWER:
a
TYPE: MC DIFFICULTY: Easy
KEYWORDS: frequency distribution
TABLE 2-3
Every spring semester, the School of Business coordinates with local business leaders a luncheon for
graduating seniors, their families, and friends. Corporate sponsorship pays for the lunches of each of
the seniors, but students have to purchase tickets to cover the cost of lunches served to the guests they
bring with them. The following histogram represents the attendance at the senior luncheon, where X is
the number of guests each graduating senior invited to the luncheon, and f is the number of graduating
seniors in each category.
160 152
140
120
100
c 85
e80
e
F60
40
20 17 18
3
0 0
0 1 2 3 4 5
Guests per Student
7. Referring to the histogram from Table 2-3, how many graduating seniors attended the luncheon?
a) 4
b) 152
c) 275
d) 388
ANSWER:
c
TYPE: MC DIFFICULTY: Difficult
EXPLANATION: The number of graduating seniors is the sum of all the frequencies, f.
KEYWORDS: interpretation, histogram 35 Presenting Data in Tables and Charts
8. Referring to the histogram from Table 2-3, if all the tickets purchased were used, how many guests
attended the luncheon?
a) 4
b) 152
c) 275
d) 388
ANSWER:
d
TYPE: MC DIFFICULTY: Difficult
6
EXPLANATION: The total number of guests is ∑ i=1 i i
KEYWORDS: interpretation, histogram
9. A professor of economics at a small Texas university wanted to determine which year in school
students were taking his tough economics course. Shown below is a pie chart of the results. What
percentage of the class took the course prior to reaching their senior year?
Freshmen
14%iors 10%
Juniors
30%
Sophomores
46%
a) 14%
b) 44%
c) 54%
d) 86%
ANSWER:
d
TYPE: MC DIFFICULTY: Easy
KEYWORDS: interpretation, pie chart Presenting Data in Tables and Chart36
10. When polygons or histograms are constructed, which axis must show the true zero or "origin?"
a) the horizontal axis
b) the vertical axis
c) both the horizontal and vertical axes
d) neither the horizontal nor the vertical axis
ANSWER:
b
TYPE: MC DIFFICULTY: Easy
KEYWORDS: polygon, histogram
11. When constructing charts, the following is plotted at the class midpoints:
a) frequency histograms.
b) percentage polygons.
c) cumulative relative frequency ogives.
d) all of the above
ANSWER:
b
TYPE: MC DIFFICULTY: Easy
KEYWORDS: percentage polygon
TABLE 2-4
A survey was conducted to determine how people rated the quality of programming available on
television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100
(extremely good quality). The stem-and-leaf display of the data is shown below.
Stem Leaves
3 24
4 03478999
5 0112345
6 12566
7 01
8
9 2
12. Referring to Table 2-4, what percentage of the respondents rated overall television quality with a
rating of 80 or above?
a) 0.00
b) 0.04
c) 0.96
d) 1.00
ANSWER:
b
TYPE: MC DIFFICULTY: Easy
KEYWORDS: stem-and-leaf display, interpretation 37 Presenting Data in Tables and Charts
13. Referring to Table 2-4, what percentage of the respondents rated overall television quality with a
rating of 50 or below?
a) 0.11
b) 0.40
c) 0.44
d) 0.56
ANSWER:
c
TYPE: MC DIFFICULTY: Moderate
KEYWORDS: stem-and-leaf display, interpretation
14. Referring to Table 2-4, what percentage of the respondents rated overall television quality with a
rating between 50 and 75?
a) 0.11
b) 0.40
c) 0.44
d) 0.56
ANSWER:
d
TYPE: MC DIFFICULTY: Moderate
KEYWORDS: stem-and-leaf display, interpretation
TABLE 2-5
The following are the durations (in minutes) of a sample of long-distance phone calls made within the
contin

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