Quantitative Reasoning Exam 2
1. All subjects under study; representative sub group or subset of population-
: A population consists of , whereas a sample is a
2. All college students GPAs: A researcher is studying possible grade inflation at
colleges in Illinois. The population is
3. The group of students GPAs which were actually included in the averages: A
researcher is studying possible grade inflation at colleges in Illinois. The sample is
4. A sample is obtained when every subject of the population has
an equal change of being selected: Random Sampling
5. A sample is taken by numbering each member of the population
and then selecting every kth member, where k is some natural number: Sys-
tematic sampling
6. Obtained when a population is divided into groups where the members of
each group have similar characteristics and a certain number of members
from each group are chosen at random: Stratified sampling
7. clusters of participants within a population of interest are randomly select-
ed, and then all individuals in each selected cluster are used: cluster sampling
8. Adding the values of the data and dividing by the total number of values: The
arithmetic mean, also known as the arithmetic average, is found by
9. Arrange the data in order from smallest to largest. If the number of data
values is odd, it will be one value in the middle of the ordered list. If the
number of data values is even, it will be the arithmetic mean of the 2 middle
values: Median
10. The midrange is the average of the largest and smallest number in a
dataset: Midrange
11. The value that occurs most often in a dataset: Mode
12. Biased Question: Consider the survey question "Are you going to vote for
Candidate Jones, even though the latest survey shows he will lose the election?"
Why do you think the question is a poor one?
13. Asking double-barreled questions: Consider the survey question "Are you in
favor of a national health program and do you think it should be subsidized by a
special tax as opposed to other ways to finance it, such as a national lottery?" Why
do you think the question is a poor one?
14. Using a double negative: Consider the survey question "Do you feel that it is
not appropriate to have areas where people cannot smoke?" Why do you think the
question is a poor one?
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1. All subjects under study; representative sub group or subset of population-
: A population consists of , whereas a sample is a
2. All college students GPAs: A researcher is studying possible grade inflation at
colleges in Illinois. The population is
3. The group of students GPAs which were actually included in the averages: A
researcher is studying possible grade inflation at colleges in Illinois. The sample is
4. A sample is obtained when every subject of the population has
an equal change of being selected: Random Sampling
5. A sample is taken by numbering each member of the population
and then selecting every kth member, where k is some natural number: Sys-
tematic sampling
6. Obtained when a population is divided into groups where the members of
each group have similar characteristics and a certain number of members
from each group are chosen at random: Stratified sampling
7. clusters of participants within a population of interest are randomly select-
ed, and then all individuals in each selected cluster are used: cluster sampling
8. Adding the values of the data and dividing by the total number of values: The
arithmetic mean, also known as the arithmetic average, is found by
9. Arrange the data in order from smallest to largest. If the number of data
values is odd, it will be one value in the middle of the ordered list. If the
number of data values is even, it will be the arithmetic mean of the 2 middle
values: Median
10. The midrange is the average of the largest and smallest number in a
dataset: Midrange
11. The value that occurs most often in a dataset: Mode
12. Biased Question: Consider the survey question "Are you going to vote for
Candidate Jones, even though the latest survey shows he will lose the election?"
Why do you think the question is a poor one?
13. Asking double-barreled questions: Consider the survey question "Are you in
favor of a national health program and do you think it should be subsidized by a
special tax as opposed to other ways to finance it, such as a national lottery?" Why
do you think the question is a poor one?
14. Using a double negative: Consider the survey question "Do you feel that it is
not appropriate to have areas where people cannot smoke?" Why do you think the
question is a poor one?
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