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|
b.|populations|
c.|sets|
d.|samples|
ANS: A PTS: 1
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...
