Question 1

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive first.

Accepted Answer

To construct a graph of a relative frequency distribution, you would most likely construct a histogram or a frequency polygon first, not an ogive. An ogive is used to display a cumulative frequency distribution.

Question 2

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it is best to use a pie chart.

Accepted Answer

A pie chart is not the best option for displaying the distribution of age among customers as it is more appropriate for showing the proportion of parts to a whole. A histogram or bar graph would be a better choice for this data.

Question 3

An ogive is a cumulative percentage polygon.

Accepted Answer

An ogive is a type of graph used in statistics to represent cumulative frequencies, and is often depicted as a cumulative percentage polygon.

Question 4

TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. 
-Referring to Table 2-12, construct a table of column percentages.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 5

TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. 
-Referring to Table 2-12, construct a table of row percentages.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 6

In general, a frequency distribution should have at least 8 class groups but no more than 20.

Accepted Answer

The number of class groups in a frequency distribution can vary widely depending on the data set and the level of detail desired. There is no strict rule that limits the number of classes to a minimum of 8 or a maximum of 20. The choice often depends on the size of the data set and the purpose of the analysis.

Question 7

TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. 
-Referring to Table 2-12, construct a table of total percentages.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 8

A side-by-side chart is two histograms plotted side-by-side.

Accepted Answer

The answer of A side-by-side chart is two histograms plotted...

Question 9

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the percentage of their customers who are below a certain age, it can use an ogive.

Accepted Answer

An ogive is a graph that displays the cumulative distribution of a variable. It can be used to study the percentage of customers below a certain age, as well as other types of cumulative distributions.

Question 10

The percentage polygon is formed by having the lower boundary of each class represent the data in that class and then connecting the sequence of lower boundaries at their respective class percentages.

Accepted Answer

A percentage polygon is formed by plotting the midpoint of each class at its respective class percentage and then connecting these points with straight lines.

Question 11

To evaluate two categorical variables at the same time, a ________ could be developed.

Accepted Answer

The answer of To evaluate two categorical variables at the...

Question 12

Relationships in a contingency table can be examined more fully if the frequencies are converted into ________.

Accepted Answer

The answer of Relationships in a contingency table can be...

Question 13

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it can use a Pareto chart.

Accepted Answer

A Pareto chart is a type of chart that displays relative frequencies or size in descending order of importance. While it could show the frequency distribution of age groups, it is not suitable for age data that has a continuous range like in this case. A histogram or a box-and-whisker plot would be better suited for this type of data analysis.

Question 14

To determine the width of class interval, divide the number of class groups by the range of the data.

Accepted Answer

To determine the width of class interval, we divide the range of data by the number of class groups, not the other way round.

Question 15

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it can use a percentage polygon.

Accepted Answer

A percentage polygon is a graphical representation used to show the distribution of data, which can be applied to age data to visualize the percentage of customers within different age ranges.

Question 16

TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. 
-Referring to Table 2-12, of those neutral in the sample, ________ percent were males.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 17

A polygon can be constructed from a bar chart.

Accepted Answer

A polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain or polygonal circuit. A bar chart, however, represents data with rectangular bars and does not form a closed polygonal shape, making it impossible to construct a polygon directly from a bar chart.

Question 18

TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. 
-Referring to Table 2-12, of those for the plan in the sample, ________ percent were females.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 19

A Wal-Mart store in a small town monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a Pareto chart.

Accepted Answer

A Pareto chart is a graphical method used for representing data in descending order of frequency, and it is often used to analyze customer complaints. Therefore, it is possible and appropriate to represent the complaints received by the Wal-Mart store in a Pareto chart.

Question 20

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.

Accepted Answer

This is a commonly recommended guideline in statistics for constructing frequency distributions. Having fewer than 5 class groups can result in insufficient information, while having more than 15 class groups can make the distribution too detailed and hard to interpret.

Quiz 2: Organizing and Visualizing Data

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive first.

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it is best to use a pie chart.

An ogive is a cumulative percentage polygon.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12, construct a table of column percentages.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12, construct a table of row percentages.

In general, a frequency distribution should have at least 8 class groups but no more than 20.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12, construct a table of total percentages.

A side-by-side chart is two histograms plotted side-by-side.

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the percentage of their customers who are below a certain age, it can use an ogive.

The percentage polygon is formed by having the lower boundary of each class represent the data in that class and then connecting the sequence of lower boundaries at their respective class percentages.

To evaluate two categorical variables at the same time, a ________ could be developed.

Relationships in a contingency table can be examined more fully if the frequencies are converted into ________.

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it can use a Pareto chart.

To determine the width of class interval, divide the number of class groups by the range of the data.

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the distribution of the age among its customers, it can use a percentage polygon.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12, of those neutral in the sample, ________ percent were males.

A polygon can be constructed from a bar chart.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12, of those for the plan in the sample, ________ percent were females.

A Wal-Mart store in a small town monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a Pareto chart.

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.