# MGMT 1050 Lecture Notes - Customer Survey, Sports Equipment, Pie Chart

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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.

17

152

85

18

3

0

0

20

40

60

80

100

120

140

160

0 1 2 3 4 5

Guests per Student

Frequency

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