3.1-3.3 Review

Front

What is a population in statistics?

Back

An entire group of objects or individuals from which data can be collected.

Front

What is a sample in statistics?

Back

A small portion of the population used to gather data from.

Front

What is unbiased sampling?

Back

When any member of the population is equally likely to be chosen for the sample.

Front

Why do we randomly select our samples?

Back

To reduce bias.

Front

What is a representative sample?

Back

A sample that accurately reflects the characteristics of the population.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a defined group, while a sample is a subset of that population.

Front

What is systematic sampling?

Back

A method of sampling where members of the population are selected at regular intervals.

Front

What is a random sample?

Back

A sample that is chosen randomly from the population, ensuring that every individual has an equal chance of being selected.

Front

What is sampling bias?

Back

A bias that occurs when certain members of the population are systematically excluded from the sample.

Front

What is the purpose of using a sample instead of a population?

Back

To make data collection more manageable and cost-effective.