Samples and Populations

Front

What is unbiased sampling?

Back

Unbiased sampling is when any member of the population is equally likely to be chosen for the sample.

Front

Which method results in the least biased decision for a field trip survey?

Back

To randomly choose some 7th grade students to select a location.

Front

What is the sample when surveying mathematics teachers?

Back

All mathematics teachers in the school.

Front

True or False: All samples lead to a good prediction about an entire population.

Back

False.

Front

What best represents a population in a logo survey?

Back

Every person in the United States.

Front

What is a sample?

Back

A sample is a subset of a population used to represent the whole.

Front

What is a population in statistics?

Back

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

Front

What is the purpose of random sampling?

Back

To ensure that every individual has an equal chance of being selected, reducing bias.

Front

What is convenience sampling?

Back

Convenience sampling is selecting individuals who are easiest to reach, which can lead to bias.

Front

What is a biased sample?

Back

A biased sample is one that does not accurately represent the population.