AP Stats Sampling/Bias

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What is Systematic Sampling?

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A sampling method where every nth individual is selected from a list or queue.

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What is Voluntary Response Bias?

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A bias that occurs when individuals can choose whether to participate in a survey, often leading to overrepresentation of those with strong opinions.

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What is Simple Random Sampling (SRS)?

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A sampling method where every individual has an equal chance of being selected, typically achieved through random selection.

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What is a Census?

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A survey that attempts to gather information from every individual in the population.

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What is Undercoverage?

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A bias that occurs when some members of the population are inadequately represented in the sample.

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What is Stratified Sampling?

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A sampling method that involves dividing the population into subgroups (strata) and taking a random sample from each stratum.

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What is Cluster Sampling?

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A sampling method where the population is divided into clusters, and entire clusters are randomly selected.

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What is Nonresponse Bias?

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A bias that occurs when individuals selected for the sample do not respond, potentially skewing the results.

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What is Response Bias?

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A bias that occurs when respondents provide inaccurate answers due to misunderstanding, misinterpretation, or social desirability.

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What is Survivorship Bias?

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A bias that occurs when only the successful or surviving subjects are considered, ignoring those that did not succeed.