Question 1

True or False: 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 should depend on the range of the data and the purpose of the analysis, and there is no hard rule about a specific range of class group numbers. It is important to choose a number that allows for meaningful interpretation of the data.

Question 2

True or False: A polygon can be constructed from a bar chart.

Accepted Answer

The answer of True or False: A polygon can be...

Question 3

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 the females in the sample,________ percent were against the plan.

Accepted Answer

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

Question 4

True or False: An ogive is a cumulative percentage polygon.

Accepted Answer

An ogive is a graph used in statistics to demonstrate cumulative frequencies or cumulative relative frequencies. It is also referred to as a cumulative frequency polygon or cumulative percentage polygon.

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

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 7

True or False: 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 class midpoints represent the data in that class, and connecting the sequence of midpoints at their respective class percentages.

Question 8

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 the females in the sample,________ percent were either neutral or against the plan.

Accepted Answer

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

Question 9

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, we divide the range of the data by the number of desired class intervals.

Question 10

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 11

True or False: Apple Computer,Inc.collected information on the age of their customers.Suppose 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

Since the question mentions the youngest and oldest customers, it suggests that data has been collected on the age of customers. An ogive can be used to study the percentage of customers below a certain age as it is a graph that shows cumulative frequencies.

Question 12

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,________ percent of the 200 were females who were against the plan.

Accepted Answer

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

Question 13

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 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

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 16

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

Accepted Answer

If you wish to construct a graph of a relative frequency distribution, you would most likely construct a histogram or a frequency polygon first. An ogive (cumulative frequency curve) can be created from the histogram or frequency polygon.

Question 17

True or False: A side-by-side bar chart is two histograms plotted side-by-side.

Accepted Answer

A side-by-side bar chart is a type of chart that displays multiple sets of data next to each other, using rectangular bars with lengths proportional to the values they represent. It is not the same as two histograms plotted side-by-side, which would show the distribution of a single variable in two different groups.

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,construct a table of column percentages.

Accepted Answer

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

Question 19

True or False: 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 generally considered a good guideline for constructing a frequency distribution, as having too few or too many class groups can result in either oversimplifying or overcomplicating the data. However, this guideline may vary depending on the specific characteristics of the data being analyzed.

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 the males in the sample,________ percent were for the plan.

Accepted Answer

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

Quiz 3: Numerical Descriptive Measures

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

True or False: 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 the females in the sample,________ percent were against the plan.

True or False: 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 row 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 total percentages.

True or False: 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.

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

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

True or False: Apple Computer,Inc.collected information on the age of their customers.Suppose 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.

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,________ percent of the 200 were females who were against the plan.

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.

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

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.

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

True or False: A side-by-side bar chart is two histograms plotted side-by-side.

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.

True or False: 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.

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 the males in the sample,________ percent were for the plan.