Population vs Sample, Parameter vs Statistic

Front

What is a population in statistics?

Back

A population is the entire group of individuals or items that we want to study or draw conclusions about.

Front

What is a sample in statistics?

Back

A sample is a subset of the population selected for analysis, used to make inferences about the population.

Front

What is a parameter?

Back

A parameter is a numerical value that summarizes a characteristic of a population.

Front

What is a statistic?

Back

A statistic is a numerical value that summarizes a characteristic of a sample.

Front

What is the difference between a population and a sample?

Back

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

Front

What is an example of a population?

Back

All American households.

Front

What is an example of a sample?

Back

A survey of 976 American households.

Front

What does it mean to generalize from a sample to a population?

Back

It means to make inferences or predictions about the entire population based on the findings from the sample.

Front

Why is it important to distinguish between population and sample?

Back

Distinguishing between population and sample is crucial for accurate data analysis and interpretation.

Front

What is a census?

Back

A census is a study that attempts to collect data from every member of a population.