Unit 3: Survey and Experimental Design Review

Front

Why is it important to use proper sampling techniques in statistics?

Back

To reduce bias and increase the reliability and validity of the statistical analysis.

Front

What type of sampling involves asking every fifth student for their opinion?

Back

Systematic sample.

Front

What is the difference between population and sample in statistics?

Back

Population is the entire group, while sample is a subset of the population.

Front

In the context of a member of Congress seeking opinions on legislation, what is the population?

Back

The constituents.

Front

What is an experiment in statistics?

Back

A planned activity whose results yield a set of data.

Front

Define 'population' in statistics.

Back

The entire group of individuals or items that we want to study.

Front

Define 'sample' in statistics.

Back

A subset of the population selected for analysis.

Front

What is the purpose of random sampling?

Back

To ensure that every member of the population has an equal chance of being selected.

Front

What is a convenience sample?

Back

A sample that is taken from a group that is easy to reach.

Front

What is a voluntary sample?

Back

A sample made up of volunteers who choose to participate.