Question 1

The final grade received in a Literature course (A, B, C, D, or F) is an example of a(n) ____________________ variable.

Accepted Answer

nominal
ca

Question 2

At the end of a safari, the tour guide asks the vacationers to respond to the questions listed below. For each question, determine whether the possible responses are interval, nominal, or ordinal.
a.How many safaris have you taken prior to this one?
b.Do you feel that your tour safari lasted sufficiently long (yes/no)?
c.Which of the following features of the accommodations did you find most attractive: location, facilities, room size, service, or price?
d.What is the maximum number of hours per day that you would like to spend traveling?
e.Is your overall rating of this safari: excellent, good, fair, or poor?

Accepted Answer

a.Interval
b.Nominal

Question 3

Provide one example of ordinal data; one example of nominal data; and one example of interval data.

Accepted Answer

Ordinal data example: Response to a mark

Question 4

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

Accepted Answer

percentage

Question 5

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-Which of the following techniques can be used to explore relationships between two nominal variables?

Accepted Answer

A) Comparing the relative frequencies within a cross-classification table. 
B) Comparing pie charts, one for each column (or row). 
C) Comparing bar charts, one for each column (or row). 
D) All of these choices are true. 
A) Comparing the relative frequencies within a cross-classification table. 
B) Comparing pie charts, one for each column (or row). 
C) Comparing bar charts, one for each column (or row). 
D) All of these choices are true.

Question 6

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-A statistics professor classifies his students according to their grade point average (GPA) and their gender. The resulting cross-classification table is shown below. $$\begin{array}{l}
\text { GPA }\
\begin{array} { | l | c c c | } 
\hline \text { Gender } & \text { Under 2.5 } & 2.5 - 3.5 & \text { Over 3.5 } \
\hline \text { Male } & 5 & 25 & 10 \
\text { Female } & 10 & 20 & 30 \
\hline
\end{array}
\end{array}$$ Which of the following describes the relationship between GPA and gender shown by this table?

Accepted Answer

A) A higher percentage of females have GPAs over 3.5, compared to males. 
B) A lower percentage of females have GPAs over 3.5, compared to males. 
C) Females and males each have the same percentage of GPAs over 3.5. 
D) You cannot compare male and female GPAs because the total number in each group is not the same. 
A) A higher percentage of females have GPAs over 3.5, compared to males. 
B) A lower percentage of females have GPAs over 3.5, compared to males. 
C) Females and males each have the same percentage of GPAs over 3.5. 
D) You cannot compare male and female GPAs because the total number in each group is not the same.

Question 7

A(n) ____________________ chart is often used to display frequencies; a(n) ____________________ chart graphically shows relative frequencies.

Accepted Answer

The answer of A(n) ____________________ chart is often used to...

Question 8

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

Accepted Answer

nominal
ca

Question 9

Your gender is a nominal variable.

Accepted Answer

A) True 
 B)False

Question 10

NARRBEGIN: Car Buyers
Car Buyers
Forty car buyers were asked to indicate which car dealer offered the best overall service. The four choices were Contour Motors (C), Modern Chrysler (M), Tonneau Auto (T), and Uncanny Chevrolet (U). The following data were obtained:
 $$\begin{array} { l l l l l l l l l } 
T&C&C&C&U&C&M&T&C&U\
U&M&C&M&T&C&M&M&C&M\
T&C&C&T&U&M&M&C&C&T\
T&U&C&U&T&M&M&C&U&T
\end{array}$$ NARREND
-{Car Buyers Narrative} Construct a pie chart of this data. Which car dealer offered the best overall service?

Accepted Answer

@#IMG-DLM& Contour Motors (C)

Question 11

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-To evaluate two nominal variables at the same time, a(n) ____________________ table should be created from the data.

Accepted Answer

cross-clas

Question 12

Twenty-five voters participating in a recent election exit poll in Minnesota were asked to state their political party affiliation. Coding the data as R for Republican, D for Democrat, and I for Independent, the data collected were as follows: I, R, D, I, R, I, I, D, R, I, I, D, R, R, I, D, I, R, I, D, I, D, R, R, and I. Construct a frequency bar chart from this data. What does the bar chart tell you about the political affiliations of those in this sample?

Accepted Answer

@#IMG-DLM& The bar graph shows most of t

Question 13

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-Data that contains information on a single variable is called ____________________ data.

Accepted Answer

The answer of NARRBEGIN: Internet Classes
Internet Classes
A survey of 25...

Question 14

Give an example of interval data that can also be treated as ordinal data and nominal data.

Accepted Answer

Example: Your actual age is in

Question 15

In purchasing an automobile, there are a number of variables to consider. The body style of the car (sedan, coupe, wagon, etc.) is an example of a(n) ____________________ variable.

Accepted Answer

nominal
ca

Question 16

Your age is an interval variable.

Accepted Answer

A) True 
 B)False

Question 17

NARRBEGIN: Business Graduates
Business School Graduates
A sample of business school graduates were asked what their major was. The results are shown in the following frequency distribution. $$\begin{array} { | l | l |} 
\hline \text { Major of Graduates } & \text { Number of graduates } \
\hline \text { Accounting } & 58 \
\text { Finance } & 42 \
\text { Manegement } & 38 \
\text { Marketing } & 52 \
\text { Other } & 10 \
\hline
\end{array}$$ NARREND
-{Business School Graduates Narrative} Draw a pie chart to summarize this data. Which major was the most popular?

Accepted Answer

@#IMG-DLM& The most popular ma

Question 18

A category in a pie chart that contains 50% of the observations is represented by a slice of the pie that is equal to ____________________ degrees.

Accepted Answer

The answer of A category in a pie chart that...

Question 19

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-You can graph the relationship between two nominal variables using two ____________________ or two ____________________.

Accepted Answer

bar charts

Question 20

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-If two nominal variables are unrelated, the patterns exhibited in their corresponding bar charts should be approximately the same. If a relationship exists, then some bar charts will differ from others.

Accepted Answer

A) True 
 B)False

The final grade received in a Literature course (A, B, C, D, or F) is an example of a(n) ____________________ variable.

Provide one example of ordinal data; one example of nominal data; and one example of interval data.

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

A(n) chart is often used to display frequencies; a(n) chart graphically shows relative frequencies.

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

Your gender is a nominal variable.

Give an example of interval data that can also be treated as ordinal data and nominal data.

In purchasing an automobile, there are a number of variables to consider. The body style of the car (sedan, coupe, wagon, etc.) is an example of a(n) ____________________ variable.

Your age is an interval variable.

A category in a pie chart that contains 50% of the observations is represented by a slice of the pie that is equal to ____________________ degrees.

What Is Statistics

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters

Exam 2: Graphical Descriptive Techniques I

The final grade received in a Literature course (A, B, C, D, or F) is an example of a(n) ____________________ variable.

Provide one example of ordinal data; one example of nominal data; and one example of interval data.

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

A(n) ____________________ chart is often used to display frequencies; a(n) ____________________ chart graphically shows relative frequencies.

The Dean of Students conducted a survey on campus. The gender of each student is an example of a(n) ____________________ variable.

Your gender is a nominal variable.

Give an example of interval data that can also be treated as ordinal data and nominal data.

In purchasing an automobile, there are a number of variables to consider. The body style of the car (sedan, coupe, wagon, etc.) is an example of a(n) ____________________ variable.

Your age is an interval variable.

A category in a pie chart that contains 50% of the observations is represented by a slice of the pie that is equal to ____________________ degrees.

What Is Statistics

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters

A(n) chart is often used to display frequencies; a(n) chart graphically shows relative frequencies.