MAT 155 Chapter 1
The following is a brief review of Chapter 1. This
does NOT cover all the material in that
chapter.
Click on Slide Show and View Slide Show.
Read and note your answer to the question.
Advance the slide to see the answer.
Thanks to Ms. Valerie Melvin for her portion of this review.
Dr. Claude Moore, Math Instructor, CFCC
The population is
1. A collection of observations.
2. A collection of methods for planning
studies and experiments.
3. The complete collection of all elements.
4. A subcollection of members drawn from
a larger group.
A self-selected study is a source of bias
in which factor of statistical analysis?
1.
2.
3.
4.
Source of data.
Context of the data.
Mathematical calculations.
Sampling method.
Which is an example of quantitative
data?
1.
2.
3.
4.
Weights of high school students.
Genders of actors and actresses.
Colors of the rainbow.
Consumer ratings of a particular
automobile (below average,
average and above average).
Which is not an example of continuous
data?
1.
2.
3.
4.
Temperature on a thermometer.
Number of students in an algebra class.
Mean weight of 100 flour sacks.
Amount of water pumped from a pond
per day.
Questions on a survey are scored with integers 1
thru 5 with 1 representing Strongly Disagree and
5 Strongly Agree. This is an example of what
kind of measurement?
1.
2.
3.
4.
Nominal.
Ratio.
Ordinal.
Interval.
In a large lecture room class of 300 students, a
sample of 10 was taken to determine the
male/female make up of the class. Which
misuse of statistics does this represent?
1.
2.
3.
4.
Percentages.
Precise numbers.
Missing data.
Small samples.
At a security checkpoint to a government facility,
every 10th individual was more thoroughly
searched than the others. What type of
sampling is this?
1.
2.
3.
4.
Systematic.
Convenience.
Stratified.
Cluster.
A sample of households is selected
and the average (mean) number of
people per household is 2.58 (based
on data from the U.S. Census Bureau.
1. Parameter
2. Statistic
The mean weight of pennies currently
being minted is 2.5 grams.
1. Discrete data
2. Continuous data
Fifty letters were sent as part of an
experiment, three of them arrived at
the target address.
1. Discrete data
2. Continuous data
Numbers on the shirts of marathon
runners.
1.
2.
3.
4.
Nominal
Ordinal
Interval
Ratio
Salaries of women who are chief
executive officers of corporations.
1.
2.
3.
4.
Nominal
Ordinal
Interval
Ratio
The current temperature in the 50
state capitol cities.
1.
2.
3.
4.
Nominal
Ordinal
Interval
Ratio
Casualty data from the great flu
epidemic of 1918 were collected for
study. This represents what type of
study?
1.
2.
3.
4.
Cross-sectional
Retrospective
Prospective
Qualitative