MATH 120 – INTRO TO STATISTICS
EXAM PREP | PRACTICE QUESTIONS
AND DETAILED ANSWERS | GRADED A+
| GUARANTEED SUCCESS
Updated 2026 Questions and Answers | 100% Verified
Exam Prep
,Match each word or phrase A numerical summary of a sample.
Statistic.
Organizing and summarizing data through tables, graphs, and numerical summaries.
Descriptive Statistics.
The science of collecting, organizing, summarizing, and analyzing information to draw
conclusions or answer questions. It is also about providing a measure of confidence in
any conclusions.
Statistics.
A subset of the group of individuals that is being studied.
Sample.
Uses methods that take results from a sample and extends them to the population, and
measures the reliability of the result.
Inferential Statistics
A person or object that is a member of the group being studied.
Individual
A numerical summary of a population.
Parameter.
The entire group of individuals to be studied.
Population
, Match each word or phrase Provide numerical measures of individuals. The measures can be added or subtracted,
and provide meaningful results.
Quantitative Variable
Allow for classification of individuals based on some attribute or characteristic.
Qualitative Variable
The characteristics of the individuals within the population.
Variable
Information that describes characteristics of an individual.
Data
Has either a finite number of possible values or countable number of possible values. The
values of these variables typically result from counting.
Discrete Variable
Has an infinite number of possible values that are not countable. The values of these
variables typically result from measurement.
Continuous Variable
Number of pets Is the variable qualitative or quantitative?
The variable is
quantitative because it is
a numerical measure.
Time to swim 100 meters Is the variable qualitative or quantitative?
The variable is
quantitative
because it is
a
numerical
measure.
EXAM PREP | PRACTICE QUESTIONS
AND DETAILED ANSWERS | GRADED A+
| GUARANTEED SUCCESS
Updated 2026 Questions and Answers | 100% Verified
Exam Prep
,Match each word or phrase A numerical summary of a sample.
Statistic.
Organizing and summarizing data through tables, graphs, and numerical summaries.
Descriptive Statistics.
The science of collecting, organizing, summarizing, and analyzing information to draw
conclusions or answer questions. It is also about providing a measure of confidence in
any conclusions.
Statistics.
A subset of the group of individuals that is being studied.
Sample.
Uses methods that take results from a sample and extends them to the population, and
measures the reliability of the result.
Inferential Statistics
A person or object that is a member of the group being studied.
Individual
A numerical summary of a population.
Parameter.
The entire group of individuals to be studied.
Population
, Match each word or phrase Provide numerical measures of individuals. The measures can be added or subtracted,
and provide meaningful results.
Quantitative Variable
Allow for classification of individuals based on some attribute or characteristic.
Qualitative Variable
The characteristics of the individuals within the population.
Variable
Information that describes characteristics of an individual.
Data
Has either a finite number of possible values or countable number of possible values. The
values of these variables typically result from counting.
Discrete Variable
Has an infinite number of possible values that are not countable. The values of these
variables typically result from measurement.
Continuous Variable
Number of pets Is the variable qualitative or quantitative?
The variable is
quantitative because it is
a numerical measure.
Time to swim 100 meters Is the variable qualitative or quantitative?
The variable is
quantitative
because it is
a
numerical
measure.
