,CHAPTER 1—DATA AND STATISTICS
MULTIPLE CHOICE
1. Which of the following is an example of quantitative data?
a. the player’s number on a baseball uniform
b. the serial number on a one-dollar bill
c. the part number of an inventory item
d. the number of people in a waiting line
ANS: D PTS: 1
2. Which of the following is not an example of descriptive statistics?
a. a histogram depicting the age distribution for 30 randomly selected students
b. an estimate of the number of Alaska residents who have visited Canada
c. a table summarizing the data collected in a sample of new-car buyers
d. the proportion of mailed-out questionnaires that were returned
ANS: B PTS: 1
3. Which of the following is an example of categorical data?
a. social security number
b. score on a multiple-choice exam
c. height, in meters, of a diving board
d. number of square feet of carpet
ANS: A PTS: 1
4. The number observations in a complete data set having 10 elements and 5 variables is
a. 5
b. 10
c. 25
d. 50
ANS: B PTS: 1
5. Facts and figures that are collected, analyzed and summarized for presentation and interpretation are
a. data
b. variables
c. elements
d. Both variables and elements are correct.
ANS: A PTS: 1
6. The entities on which data are collected are
a. elements
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
,b. populations
c. sets
d. samples
ANS: A PTS: 1
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
, 7. The set of measurements collected for a particular element is (are) called
a. census
b. variables
c. observations
d. samples
ANS: C PTS: 1
8. A characteristic of interest for the elements is called a(n)
a. sample
b. data set
c. variable
d. observation
ANS: C PTS: 1
9. All the data collected in a particular study are referred to as the
a. census
b. inference
c. variable
d. data set
ANS: D PTS: 1
10. In a data set, the number of observations will always be the same as the number of
a. variables
b. elements
c. data sets
d. data
ANS: B PTS: 1
11. Which of the following is NOT a scale of measurement?
a. nominal
b. ordinal
c. interval
d. All of these are scales of measurement.
ANS: D PTS: 1
12. When the data are labels or names used to identify an attribute of the elements, the variable has which
scale of measurement?
a. nominal
b. ordinal
c. interval
d. ratio
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
MULTIPLE CHOICE
1. Which of the following is an example of quantitative data?
a. the player’s number on a baseball uniform
b. the serial number on a one-dollar bill
c. the part number of an inventory item
d. the number of people in a waiting line
ANS: D PTS: 1
2. Which of the following is not an example of descriptive statistics?
a. a histogram depicting the age distribution for 30 randomly selected students
b. an estimate of the number of Alaska residents who have visited Canada
c. a table summarizing the data collected in a sample of new-car buyers
d. the proportion of mailed-out questionnaires that were returned
ANS: B PTS: 1
3. Which of the following is an example of categorical data?
a. social security number
b. score on a multiple-choice exam
c. height, in meters, of a diving board
d. number of square feet of carpet
ANS: A PTS: 1
4. The number observations in a complete data set having 10 elements and 5 variables is
a. 5
b. 10
c. 25
d. 50
ANS: B PTS: 1
5. Facts and figures that are collected, analyzed and summarized for presentation and interpretation are
a. data
b. variables
c. elements
d. Both variables and elements are correct.
ANS: A PTS: 1
6. The entities on which data are collected are
a. elements
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
,b. populations
c. sets
d. samples
ANS: A PTS: 1
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
, 7. The set of measurements collected for a particular element is (are) called
a. census
b. variables
c. observations
d. samples
ANS: C PTS: 1
8. A characteristic of interest for the elements is called a(n)
a. sample
b. data set
c. variable
d. observation
ANS: C PTS: 1
9. All the data collected in a particular study are referred to as the
a. census
b. inference
c. variable
d. data set
ANS: D PTS: 1
10. In a data set, the number of observations will always be the same as the number of
a. variables
b. elements
c. data sets
d. data
ANS: B PTS: 1
11. Which of the following is NOT a scale of measurement?
a. nominal
b. ordinal
c. interval
d. All of these are scales of measurement.
ANS: D PTS: 1
12. When the data are labels or names used to identify an attribute of the elements, the variable has which
scale of measurement?
a. nominal
b. ordinal
c. interval
d. ratio
© 2012 Cengage Learning. All Rights Reserved. This edition is intended for use outside of the U.S. only, with content that may be different
from the U.S. Edition. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
