FUNDAMENTALS OF MODERN MATH-
EXAM 2 QUESTIONS AND CORRECT
ANSWERS A+ 2026/2027
Statistics -CORRECT ANSWERS- The science of collecting, organizing, summarizing, & interpreting data.
- The data valves
Data Production -CORRECT ANSWERS- methods for producing data that can give clear answers to
specific questions
Data Analysis -CORRECT ANSWERS- methods and strategies for exploring, organizing, and describing
data
Statistical Inference -CORRECT ANSWERS- methods for drawing conclusions about a general population
descriptive statistics -CORRECT ANSWERS- concerned with collecting, organizing, summarizing
-presenting data in a convenient form
What category of statistics does not infer about a general population -CORRECT ANSWERS- Descriptive
Statistics
inferential statistics -CORRECT ANSWERS- utilizes sample data to make estimates, decisions, predictions,
or other generalizations about a larger set of data
What category of statistics generalizes from sample data to population -CORRECT ANSWERS- Inferential
Population -CORRECT ANSWERS- the complete collection of all measurements or data that are being
considered
, Census -CORRECT ANSWERS- data collection from entire population
Parameter -CORRECT ANSWERS- specific characteristics of population that a statistical study is designed
to estimate
Sample -CORRECT ANSWERS- The subset of the population from which the raw data are actually
obtained
Sample Statistic -CORRECT ANSWERS- numbers or observations that summarize the raw data
5 steps in a statistical study -CORRECT ANSWERS- 1. State the goal of your study precisely; that is,
determine the population you want to study and exactly what you'd like to learn from it.
2. Choose a representative sample from the population
3. Collect raw data from the sample and summarize these data by finding sample statistics of interest.
4. Use the sample statistics to infer the population parameters.
5. Draw conclusions; determine what you have learned and whether you achieved your goal.
Representative Sample -CORRECT ANSWERS- the relevant characteristics of the sample is representative
of the population.
Convenience Sample -CORRECT ANSWERS- We use a sample that is convenient to select such as people
who happen to be in the same classroom
Convenience Sample -CORRECT ANSWERS- Walking around campus is an example of what sample
method?
Voluntary Response Sample -CORRECT ANSWERS- People who choose to complete a survey or answer
survey questions
Systematic Sample -CORRECT ANSWERS- obtained by selecting every #th individual from the population
EXAM 2 QUESTIONS AND CORRECT
ANSWERS A+ 2026/2027
Statistics -CORRECT ANSWERS- The science of collecting, organizing, summarizing, & interpreting data.
- The data valves
Data Production -CORRECT ANSWERS- methods for producing data that can give clear answers to
specific questions
Data Analysis -CORRECT ANSWERS- methods and strategies for exploring, organizing, and describing
data
Statistical Inference -CORRECT ANSWERS- methods for drawing conclusions about a general population
descriptive statistics -CORRECT ANSWERS- concerned with collecting, organizing, summarizing
-presenting data in a convenient form
What category of statistics does not infer about a general population -CORRECT ANSWERS- Descriptive
Statistics
inferential statistics -CORRECT ANSWERS- utilizes sample data to make estimates, decisions, predictions,
or other generalizations about a larger set of data
What category of statistics generalizes from sample data to population -CORRECT ANSWERS- Inferential
Population -CORRECT ANSWERS- the complete collection of all measurements or data that are being
considered
, Census -CORRECT ANSWERS- data collection from entire population
Parameter -CORRECT ANSWERS- specific characteristics of population that a statistical study is designed
to estimate
Sample -CORRECT ANSWERS- The subset of the population from which the raw data are actually
obtained
Sample Statistic -CORRECT ANSWERS- numbers or observations that summarize the raw data
5 steps in a statistical study -CORRECT ANSWERS- 1. State the goal of your study precisely; that is,
determine the population you want to study and exactly what you'd like to learn from it.
2. Choose a representative sample from the population
3. Collect raw data from the sample and summarize these data by finding sample statistics of interest.
4. Use the sample statistics to infer the population parameters.
5. Draw conclusions; determine what you have learned and whether you achieved your goal.
Representative Sample -CORRECT ANSWERS- the relevant characteristics of the sample is representative
of the population.
Convenience Sample -CORRECT ANSWERS- We use a sample that is convenient to select such as people
who happen to be in the same classroom
Convenience Sample -CORRECT ANSWERS- Walking around campus is an example of what sample
method?
Voluntary Response Sample -CORRECT ANSWERS- People who choose to complete a survey or answer
survey questions
Systematic Sample -CORRECT ANSWERS- obtained by selecting every #th individual from the population
