Question 1

Apple Computer, Inc. collected information on the age of its 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 used to represent cumulative frequency distributions. In this case, Apple Computer, Inc. can use an ogive to study the percentage of their customers who are below a certain age.

Question 2

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 3

An ogive is a cumulative percentage polygon.

Accepted Answer

An ogive is indeed a cumulative percentage polygon that shows the distribution of a dataset. It is commonly used in statistics and data analysis.

Question 4

Apple Computer, Inc. collected information on the age of its 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 appropriate for displaying the distribution of age among customers as it is better suited for displaying proportions or percentages of a whole, such as parts of a whole pie. A histogram or frequency polygon would be more appropriate for this type of data.

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 total percentages.

Accepted Answer

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

Question 6

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 to ensure that the frequency distribution is not too general and not too detailed. However, the exact number of class groups may vary depending on the nature of the data and the purpose of analysis.

Question 7

Apple Computer, Inc. collected information on the age of its 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 used to show the relative frequency or size of different categories in descending order. However, age is a continuous variable and cannot be categorized. Instead, a histogram or a box plot would be more appropriate to study the distribution of age among customers.

Question 8

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 9

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 10

True of False: 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, divide the range of the data by the number of desired class intervals or groups.

Question 11

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 12

A Walmart 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 displaying the relative frequency or size of problems in descending order of importance. It is often used to identify the most significant problems or complaints that need to be addressed first. Therefore, it is an appropriate method for the Walmart store to use to represent their customer complaints data.

Question 13

Apple Computer, Inc. collected information on the age of its 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 an appropriate way to display the distribution of a variable measured on a continuous scale, such as age. By showing the percentage of customers falling within each age range, the percentage polygon can illustrate the shape of the distribution and identify any patterns or outliers.

Question 14

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 15

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 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, construct a table of column percentages.

Accepted Answer

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

Question 17

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 18

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

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

Question 19

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 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, of those neutral in the sample, ________ percent were males.

Accepted Answer

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

Quiz 2: Organizing and Visualizing Data

Apple Computer, Inc. collected information on the age of its 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.

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

An ogive is a cumulative percentage polygon.

Apple Computer, Inc. collected information on the age of its 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.

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 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.

Apple Computer, Inc. collected information on the age of its 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.

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 row percentages.

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

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

A Walmart 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.

Apple Computer, Inc. collected information on the age of its 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.

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

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

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, of those for the plan in the sample, ________ percent were females.

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.

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 neutral in the sample, ________ percent were males.