Population and Sample

Front

What is the definition of a population in statistics?

Back

A population is the entire group of individuals or instances about whom we hope to learn.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a sample in statistics?

Back

A sample is a subset of the population that is used to represent the entire group.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample consists of a portion of that group.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a sampling method?

Back

A sampling method is a process used to select a sample from a population.

Tags

CCSS.HSS.IC.B.3

Front

What is random sampling?

Back

Random sampling is a technique where each member of the population has an equal chance of being selected.

Tags

CCSS.HSS.IC.B.3

Front

What is stratified sampling?

Back

Stratified sampling involves dividing the population into subgroups and taking a sample from each subgroup.

Tags

CCSS.HSS.IC.B.3

Front

What is convenience sampling?

Back

Convenience sampling is a non-probability sampling technique where samples are taken from a group that is easily accessible.

Tags

CCSS.HSS.IC.B.3

Front

What is the purpose of surveying a sample?

Back

The purpose of surveying a sample is to make inferences about the population without surveying every individual.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a parameter in statistics?

Back

A parameter is a numerical characteristic of a population, such as a mean or standard deviation.

Tags

CCSS.HSS.IC.B.3

Front

What is a statistic in statistics?

Back

A statistic is a numerical characteristic of a sample, used to estimate a population parameter.

Tags

CCSS.6.SP.A.3