ELEMENTARY STATISTICS FINAL EXAM
SCRIPT PRACTICE QUESTIONS AND
CORRECT SOLUTIONS
●● statistics
Answer: -the science of collecting, organizing, analyzing, and
interpreting data in order to make decisions
-derived from the Latin word "status" meaning state
involves more of counting births & deaths
-divided into 2 fields (descriptive & inferential)
●● data sets
Answer: two types used to study in statistics:
-population
-samples
●● population
Answer: the collection of ALL outcomes, responses, measurements, or
counts that are of interest
●● Population Example:
,EX: the amount of energy collected from every wind turbine on a wind
farm...what is the population?
Answer: The energy amounts are a population bc the amounts represent
a collection of amounts from ALL the wind turbines on the farm
●● sample
Answer: -a subset, or part, of a population
-should be a representative of a population so it can be used to draw
conclusions about population
"Random sampling" is an appropriate method of ____
-a sample is used more than population bc data is used to draw
conclusions about a population
●● Sample Example:
A survey of 500 spectators from a stadium with 42,000 spectators...what
is the sample?
Answer: The survey of 500 spectators is a sample bc it is a subset, or
part, of the population of 42,000 spectators at the stadium
●● Data Set Examples:
A survey of 1015 U.S. adults found that 32% have had to put off medical
care for themselves or their family in the past year due to cost. What are
the data sets?
Answer: Population: results from all adults in U.S.
, Sample: results from the 1015 U.S. adults included in the survey
●● Data Set Examples:
In a survey, 614 small business owners in the US were asked whether
they thought their companys FB presence was valuable. 258 of the 614
said yes.
What is the population and sample & describe the sample data set?
Answer: The population consists of the responses of all small business
owners in the US.
The sample consists of the 614 responses of the small business owners
in the survey.
**The sample is a subset of responses of business owners in the US...the
sample data set consists of 258 "yes" owners & 356 owners who said
"no"
●● parameter
Answer: a numerical description of a POPULATION characteristic
●● Parameter Example:
In January 2013, 60% of the governors of the 50 states in the USA were
republicans. What is the Parameter?
Answer: The 60% is the PARAMETER. It is the numerical description
of the total number of governors
SCRIPT PRACTICE QUESTIONS AND
CORRECT SOLUTIONS
●● statistics
Answer: -the science of collecting, organizing, analyzing, and
interpreting data in order to make decisions
-derived from the Latin word "status" meaning state
involves more of counting births & deaths
-divided into 2 fields (descriptive & inferential)
●● data sets
Answer: two types used to study in statistics:
-population
-samples
●● population
Answer: the collection of ALL outcomes, responses, measurements, or
counts that are of interest
●● Population Example:
,EX: the amount of energy collected from every wind turbine on a wind
farm...what is the population?
Answer: The energy amounts are a population bc the amounts represent
a collection of amounts from ALL the wind turbines on the farm
●● sample
Answer: -a subset, or part, of a population
-should be a representative of a population so it can be used to draw
conclusions about population
"Random sampling" is an appropriate method of ____
-a sample is used more than population bc data is used to draw
conclusions about a population
●● Sample Example:
A survey of 500 spectators from a stadium with 42,000 spectators...what
is the sample?
Answer: The survey of 500 spectators is a sample bc it is a subset, or
part, of the population of 42,000 spectators at the stadium
●● Data Set Examples:
A survey of 1015 U.S. adults found that 32% have had to put off medical
care for themselves or their family in the past year due to cost. What are
the data sets?
Answer: Population: results from all adults in U.S.
, Sample: results from the 1015 U.S. adults included in the survey
●● Data Set Examples:
In a survey, 614 small business owners in the US were asked whether
they thought their companys FB presence was valuable. 258 of the 614
said yes.
What is the population and sample & describe the sample data set?
Answer: The population consists of the responses of all small business
owners in the US.
The sample consists of the 614 responses of the small business owners
in the survey.
**The sample is a subset of responses of business owners in the US...the
sample data set consists of 258 "yes" owners & 356 owners who said
"no"
●● parameter
Answer: a numerical description of a POPULATION characteristic
●● Parameter Example:
In January 2013, 60% of the governors of the 50 states in the USA were
republicans. What is the Parameter?
Answer: The 60% is the PARAMETER. It is the numerical description
of the total number of governors
