Random Samples

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger population, where each individual has an equal chance of being selected.

Front

What does it mean if a sample is biased?

Back

A biased sample is one that does not accurately represent the population, often due to the method of selection.

Front

What is the difference between a sample and a population?

Back

A population includes all members of a specified group, while a sample is a smaller group selected from that population.

Front

Why is it important to have an unbiased sample in surveys?

Back

An unbiased sample ensures that the results of the survey are valid and can be generalized to the entire population.

Front

What is an example of a biased sample?

Back

Surveying only UT college boys basketball players to determine if Knoxville should have a new NBA team.

Front

What is an example of an unbiased sample?

Back

Asking 100 students at random during lunch to find out their opinions on school lunch.

Front

What is the term for the entire group you want to learn about in a survey?

Back

Population.

Front

What is the term for a smaller group selected from the population for a survey?

Back

Sample.

Front

If you survey every 5th person in a lunchroom, is this biased or unbiased?

Back

Unbiased.

Front

What is a convenience sample?

Back

A convenience sample is a type of non-random sampling where the sample is taken from a group that is easily accessible.