Chapter 01 - What Is Statistics?
Chapter 1
What Is Statistics?
1. a. Interval b. Ratio
c. Nominal d. Nominal
e. Ordinal f. Ratio (LO1-5)
2. a. Ratio b. Nominal
c. Ratio d. Ratio (LO1-5)
3. Answer will vary. (LO1-5)
4. a. Sample b. Population
c. Population d. Sample (LO1-3)
5. Qualitative data is not numerical, whereas quantitative data is numerical. Examples will vary
by student. (LO1-4)
6. A population is the entire group which you are studying. A sample is a subset taken from a
population. (LO1-3)
7. Discrete variables can assume only certain values, but continuous variables can assume any
values within some range. Examples will vary. (LO1-4)
8. a. A population is used because the professor likely has grades readily available from
every student over the past 5 years.
b. A population is employed because the information is easy to find.
c. A population is used because the information is easy to find.
d. A sample works because it is difficult to locate every musical. (LO1-3)
9. a. Ordinal
b. Ratio
c. The newer system provided information on the distance between exits. (LO1-5)
10. The cell phone provider is nominal level data. The minutes used are ratio level. Satisfaction is
ordinal level. (LO1-5)
11. If you were using this store as typical of all Barnes & Noble stores then it would be sample
data. However, if you were considering it as the only store of interest, then the data would be
population data. (LO1-3)
12. In a presidential election all votes are counted, thus it is similar to a census of the entire
population. However, an “exit” poll consists of only some voters and thus is more like a
sample of the entire population. (LO1-3)
1-1
Chapter 1
What Is Statistics?
1. a. Interval b. Ratio
c. Nominal d. Nominal
e. Ordinal f. Ratio (LO1-5)
2. a. Ratio b. Nominal
c. Ratio d. Ratio (LO1-5)
3. Answer will vary. (LO1-5)
4. a. Sample b. Population
c. Population d. Sample (LO1-3)
5. Qualitative data is not numerical, whereas quantitative data is numerical. Examples will vary
by student. (LO1-4)
6. A population is the entire group which you are studying. A sample is a subset taken from a
population. (LO1-3)
7. Discrete variables can assume only certain values, but continuous variables can assume any
values within some range. Examples will vary. (LO1-4)
8. a. A population is used because the professor likely has grades readily available from
every student over the past 5 years.
b. A population is employed because the information is easy to find.
c. A population is used because the information is easy to find.
d. A sample works because it is difficult to locate every musical. (LO1-3)
9. a. Ordinal
b. Ratio
c. The newer system provided information on the distance between exits. (LO1-5)
10. The cell phone provider is nominal level data. The minutes used are ratio level. Satisfaction is
ordinal level. (LO1-5)
11. If you were using this store as typical of all Barnes & Noble stores then it would be sample
data. However, if you were considering it as the only store of interest, then the data would be
population data. (LO1-3)
12. In a presidential election all votes are counted, thus it is similar to a census of the entire
population. However, an “exit” poll consists of only some voters and thus is more like a
sample of the entire population. (LO1-3)
1-1
