AP Stats Sampling/Bias

Front

What is Undercoverage in sampling?

Back

Undercoverage occurs when some members of the population are inadequately represented in the sample, leading to biased results.

Front

Define Voluntary Response Bias.

Back

Voluntary Response Bias occurs when individuals can choose whether or not to participate in a survey, often leading to a sample that is not representative of the population.

Front

What is Nonresponse Bias?

Back

Nonresponse Bias occurs when individuals selected for the sample do not respond, which can skew the results if the nonrespondents differ significantly from respondents.

Front

Explain Response Bias.

Back

Response Bias occurs when participants provide inaccurate or false answers, often due to misunderstanding the question or social desirability.

Front

What is a Simple Random Sample (SRS)?

Back

A Simple Random Sample is a sampling method where every individual in the population has an equal chance of being selected.

Front

Define Stratified Random Sampling.

Back

Stratified Random Sampling involves dividing the population into subgroups (strata) based on shared characteristics and then randomly sampling from each stratum.

Front

What is Cluster Sampling?

Back

Cluster Sampling involves dividing the population into clusters (often geographically) and then randomly selecting entire clusters to survey.

Front

Identify the Population in a survey.

Back

The Population is the entire group of individuals that a study aims to understand or draw conclusions about.

Front

What is Convenience Sampling?

Back

Convenience Sampling involves selecting individuals who are easiest to reach, which may not represent the entire population.

Front

Explain the concept of Sampling Error.

Back

Sampling Error is the difference between the sample statistic and the actual population parameter, often due to the sample not being representative.