Question 1

For a frequency distribution of qualitative data, if the observations can be assigned to only one class, the classes are ___________________________.

Accepted Answer

The answer of For a frequency distribution of qualitative data,...

Question 2

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"?  What is the class with the greatest frequency?
A) Very confident.
B) Somewhat confident.
C) Not very confident.
D) Don't know.

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 3

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?  What type of chart should be used to show relative class frequencies?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 4

A pie chart shows the
A) relative frequencies of a qualitative variable.
B) relative frequencies of a quantitative variable.
C) frequencies of a nominal variable.
D) frequencies of a ratio variable.

Accepted Answer

A pie chart is used to display the relative frequencies or proportions of categories in a qualitative variable. It is useful in presenting an overview of the distribution of a variable and showing the contribution of each category to the whole. Pie charts are not appropriate for quantitative variables because they do not display numerical values or intervals. Nominal variables are qualitative variables that have categories with no inherent order or ranking, which makes them suitable for pie charts. Ratio variables, on the other hand, are quantitative variables that have a true zero point and can be measured on a continuous scale, which requires more complex visualizations such as histograms or box plots.

Question 5

In constructing a frequency polygon, class frequencies are scaled on which axis? ______

Accepted Answer

The answer of In constructing a frequency polygon, class frequencies...

Question 6

What is the number of observations in each class of a frequency distribution called? _________________________

Accepted Answer

The answer of What is the number of observations in...

Question 7

A frequency distribution for nominal data requires that the categories be ___________________ and ______________________.

Accepted Answer

The answer of A frequency distribution for nominal data requires...

Question 8

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?  What type of chart should be used to describe the frequency table?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

A bar chart is the best choice to describe the frequency table as it allows for the comparison of the frequency of concerns among different groups, such as age or gender. Pie charts are not appropriate for comparing multiple groups and are usually used for percentages that make up a whole. Histograms and frequency polygons are usually used to display the frequency distribution of a continuous variable, rather than a categorical variable like concern about being tracked.

Question 9

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"?  What is the class interval for the frequency table above?
A) 10
B) 20
C) 40
D) None of the above

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 10

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?  What percent of the responses indicated that users were somewhat concerned?
A) 40%
B) 70%
C) 20%
D) 100%

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 11

Refer to the following breakdown of responses to a survey of room service in a hotel.  What type of chart should be used to describe the frequency table?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

A bar chart is the best choice to describe the frequency table as it is used to display the frequency or count of each category in a dataset. In this case, the categories include the different ratings of room service and their corresponding frequencies. A bar chart will show the frequencies as bars of equal width, with the height of each bar indicating the frequency count.

Question 12

Refer to the following breakdown of responses to a survey of room service in a hotel.  What is the class with the greatest frequency?
A) Not satisfied
B) Satisfied
C) Highly satisfied
D) None of the above

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 13

Refer to the following breakdown of responses to a survey of room service in a hotel.  What percent of the responses indicated that customers were satisfied?
A) 40%
B) 33%
C) 50%
D) 100%

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 14

For a frequency distribution of quantitative data, if every individual, object or measurement can be assigned to a class, the frequency distribution is ___________.

Accepted Answer

The answer of For a frequency distribution of quantitative data,...

Question 15

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"?  What type of chart should be used to describe the frequency table?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 16

Refer to the following breakdown of responses to a survey of room service in a hotel.  What type of chart should be used to show relative class frequencies?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 17

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"?  What type of chart should be used to show relative class frequencies?
A) Pie chart
B) Bar chart
C) Histogram
D) Frequency Polygon

Accepted Answer

The answer of Refer to the following breakdown of responses...

Question 18

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"?  What percent of the responses indicated that users were very confident?
A) 63%
B) 21%
C) 45%
D) 33%

Accepted Answer

21% of respondents indicated they were "very confident," which is the only option provided as a choice. The other answer choices do not match any of the percentages given in the chart.

Question 19

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?  What is the class with the greatest frequency?
A) Very concerned
B) Somewhat concerned
C) No concern
D) None of the above

Accepted Answer

The class with the greatest frequency is the one with the highest bar in the chart, which is "Very concerned".

Question 20

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?  What is the class interval for the frequency table above?
A) 10
B) 20
C) 40
D) None of the above

Accepted Answer

The answer of Refer to the following breakdown of responses...

Quiz 2: Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

For a frequency distribution of qualitative data, if the observations can be assigned to only one class, the classes are ___________________________.

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"? What is the class with the greatest frequency?

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What type of chart should be used to show relative class frequencies?

A pie chart shows the

In constructing a frequency polygon, class frequencies are scaled on which axis? ______

What is the number of observations in each class of a frequency distribution called? _________________________

A frequency distribution for nominal data requires that the categories be _ and ____.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What type of chart should be used to describe the frequency table?

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"? What is the class interval for the frequency table above?

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What percent of the responses indicated that users were somewhat concerned?

Refer to the following breakdown of responses to a survey of room service in a hotel. What type of chart should be used to describe the frequency table?

Refer to the following breakdown of responses to a survey of room service in a hotel. What is the class with the greatest frequency?

Refer to the following breakdown of responses to a survey of room service in a hotel. What percent of the responses indicated that customers were satisfied?

For a frequency distribution of quantitative data, if every individual, object or measurement can be assigned to a class, the frequency distribution is ___________.

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"? What type of chart should be used to describe the frequency table?

Refer to the following breakdown of responses to a survey of room service in a hotel. What type of chart should be used to show relative class frequencies?

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"? What type of chart should be used to show relative class frequencies?

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire"? What percent of the responses indicated that users were very confident?

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What is the class with the greatest frequency?

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What is the class interval for the frequency table above?