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2016
Basic Business Statistics
Concepts and Application – 13th edition
Test Bank
Cairo University
Faculty of Commerce
Math & Insurance Department
1/1/2016
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Chapter One: Defining and collecting Data
1. Which of the following is a continuous quantitative (numerical) variable?
a) The time it takes to download the b) The gender of a student
update for your new mobile app
c) The number of text messages that d) The number of items purchased
have been sent last week
2. Which of the following is a continuous quantitative (numerical) variable?
b) The number of employees of an
a) The color of a student’s eyes insurance company
d) The number of gallons of milk sold at
c) The amount of milk in a 2-liter carton
the local grocery store yesterday
3. Which of the following is a discrete quantitative (numerical) variable?
b) The volume of water released from a
a) The Dow Jones Industrial average
dam
d) The number of employees of an
c) The distance you drove yesterday.
insurance company
4. In statistics, a population consists of:
a) all people living in a country b) all people living in the area under study
c) all subjects or objects whose d) a selection of a limited number of
characteristics are being studied elements
5. In statistics, we define a sample as:
a) people living in one city only b) all items under investigation
c) the target population d) a portion of the population
6. Researchers are concerned that the weight of the average American school child is
increasing implying, among other things, that children’s clothing should be
manufactured and marketed in larger sizes. If X is the weight of school children sampled
in a nationwide study, then X is an example of:
2
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a) a categorical variable. b) a discrete variable.
c) a continuous variable. d) a table of random numbers.
7. The classification of student class designation (freshman, sophomore, junior, senior) is
an example of:
a) a categorical variable. b) a discrete variable.
c) a continuous variable. d) a table of random numbers.
8. the possible responses to the question "In which year were you born?" are values from
a:
a) Discrete numerical variable b) Continuous numerical variable
c) Categorical variable. d) Table of random numbers.
9. the possible responses to the question "What is your annual income rounded to the
nearest thousands?" result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
10. the possible responses to the question "How would you rate the quality of your
purchase experience with 1 = excellent, 2 = good, 3 = decent, 4 = poor, 5 = terrible?"
result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
11. the possible responses to the question "Out of a 100 point score with 100 being the
highest and 0 being the lowest, what is your satisfaction level with the Blu-ray player
that you purchased?" result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
12. An insurance company evaluates many numerical variables about a person before
deciding on an appropriate rate for automobile insurance. The number of claims a
person has made in the last 3 years is an example of a _______ numerical variable.
a) Discrete b) Continuous
c) Categorical d) Ordinal
3
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13. A discrete variable is a variable that can assume:
a) categorical values only b) an uncountable set of values
c)a countable set of values only d) non-numerical values
14. A continuous variable is a variable that can assume:
a) categorical values only b) an uncountable set of values
c) a countable set of values only d) non-numerical values
15. A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out
their view on the U.S. economy.
the population of interest is
a) all the males living in the U.S. when the b) all the females living in the U.S. when the
polled was taken. polled was taken.
c) all the adults living in the U.S. when the d) all the people living in the U.S. when the
poll was taken. poll was taken.
16. A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out
their view on the U.S. economy, the 2,150 adults make up
a) the population b) the sample
c) the primary data source d) the secondary data source
17. the possible responses to the question "Are you 1. Currently employed, 2. Unemployed
but actively looking for job, 3. Unemployed and quit looking for job?" are values from a
a) discrete numerical variable. b) continuous numerical variable.
c) categorical variable. d) table of random numbers.
18. Which of the following is most likely a population as opposed to a sample?
a) respondents to a newspaper survey. b) the first 5 students completing an
assignment.
c) every third person to arrive at the bank. d) registered voters in a county.
19. A study is under way in Yosemite National Forest to determine the adult height of
American pine trees. Specifically, the study is attempting to determine what factors aid
a tree in reaching heights greater than 60 feet tall. It is estimated that the forest
contains 25,000 adult American pines. The study involves collecting heights from 250
randomly selected adult American pine trees and analyzing the results. Identify the
population from which the study was sampled.
a) The 250 randomly selected adult b) The 25,000 adult American pine trees in
American pine trees. the forest.
c) All the adult American pine trees taller d) All American pine trees, of any age, in the
4
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2016
Basic Business Statistics
Concepts and Application – 13th edition
Test Bank
Cairo University
Faculty of Commerce
Math & Insurance Department
1/1/2016
b0f24a102ed_business_statistics___test_bank.doc(*Y#&*^#*^&^*^$!^(*#()IU$)*(!*)$*@&*@*20240124111938_65b0f24a102ed_business_statistics___test_bank.doc
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Chapter One: Defining and collecting Data
1. Which of the following is a continuous quantitative (numerical) variable?
a) The time it takes to download the b) The gender of a student
update for your new mobile app
c) The number of text messages that d) The number of items purchased
have been sent last week
2. Which of the following is a continuous quantitative (numerical) variable?
b) The number of employees of an
a) The color of a student’s eyes insurance company
d) The number of gallons of milk sold at
c) The amount of milk in a 2-liter carton
the local grocery store yesterday
3. Which of the following is a discrete quantitative (numerical) variable?
b) The volume of water released from a
a) The Dow Jones Industrial average
dam
d) The number of employees of an
c) The distance you drove yesterday.
insurance company
4. In statistics, a population consists of:
a) all people living in a country b) all people living in the area under study
c) all subjects or objects whose d) a selection of a limited number of
characteristics are being studied elements
5. In statistics, we define a sample as:
a) people living in one city only b) all items under investigation
c) the target population d) a portion of the population
6. Researchers are concerned that the weight of the average American school child is
increasing implying, among other things, that children’s clothing should be
manufactured and marketed in larger sizes. If X is the weight of school children sampled
in a nationwide study, then X is an example of:
2
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a) a categorical variable. b) a discrete variable.
c) a continuous variable. d) a table of random numbers.
7. The classification of student class designation (freshman, sophomore, junior, senior) is
an example of:
a) a categorical variable. b) a discrete variable.
c) a continuous variable. d) a table of random numbers.
8. the possible responses to the question "In which year were you born?" are values from
a:
a) Discrete numerical variable b) Continuous numerical variable
c) Categorical variable. d) Table of random numbers.
9. the possible responses to the question "What is your annual income rounded to the
nearest thousands?" result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
10. the possible responses to the question "How would you rate the quality of your
purchase experience with 1 = excellent, 2 = good, 3 = decent, 4 = poor, 5 = terrible?"
result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
11. the possible responses to the question "Out of a 100 point score with 100 being the
highest and 0 being the lowest, what is your satisfaction level with the Blu-ray player
that you purchased?" result in
a) a nominal scale variable. b) an ordinal scale variable.
c) an interval scale variable. d) a ratio scale variable.
12. An insurance company evaluates many numerical variables about a person before
deciding on an appropriate rate for automobile insurance. The number of claims a
person has made in the last 3 years is an example of a _______ numerical variable.
a) Discrete b) Continuous
c) Categorical d) Ordinal
3
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13. A discrete variable is a variable that can assume:
a) categorical values only b) an uncountable set of values
c)a countable set of values only d) non-numerical values
14. A continuous variable is a variable that can assume:
a) categorical values only b) an uncountable set of values
c) a countable set of values only d) non-numerical values
15. A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out
their view on the U.S. economy.
the population of interest is
a) all the males living in the U.S. when the b) all the females living in the U.S. when the
polled was taken. polled was taken.
c) all the adults living in the U.S. when the d) all the people living in the U.S. when the
poll was taken. poll was taken.
16. A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out
their view on the U.S. economy, the 2,150 adults make up
a) the population b) the sample
c) the primary data source d) the secondary data source
17. the possible responses to the question "Are you 1. Currently employed, 2. Unemployed
but actively looking for job, 3. Unemployed and quit looking for job?" are values from a
a) discrete numerical variable. b) continuous numerical variable.
c) categorical variable. d) table of random numbers.
18. Which of the following is most likely a population as opposed to a sample?
a) respondents to a newspaper survey. b) the first 5 students completing an
assignment.
c) every third person to arrive at the bank. d) registered voters in a county.
19. A study is under way in Yosemite National Forest to determine the adult height of
American pine trees. Specifically, the study is attempting to determine what factors aid
a tree in reaching heights greater than 60 feet tall. It is estimated that the forest
contains 25,000 adult American pines. The study involves collecting heights from 250
randomly selected adult American pine trees and analyzing the results. Identify the
population from which the study was sampled.
a) The 250 randomly selected adult b) The 25,000 adult American pine trees in
American pine trees. the forest.
c) All the adult American pine trees taller d) All American pine trees, of any age, in the
4
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