Unit 3 AP Statistics Review

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What is Voluntary Response Bias?

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

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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Define Cluster Sampling.

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Cluster Sampling is a sampling technique where the entire population is divided into heterogeneous groups called clusters, and a random sample of these clusters is selected.

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CCSS.HSS.IC.B.3

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What is Undercoverage Bias?

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Undercoverage Bias happens when certain segments of a population are excluded or represented less in the sample than they are in the population.

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CCSS.HSS.IC.B.3

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What is a Census?

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A Census is a method of data collection where information is obtained from every member of the population.

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CCSS.6.SP.B.5B

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Explain Stratified Random Sampling.

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Stratified Random Sampling is a method where the population is divided into strata (groups) based on shared characteristics, and random samples are taken from each stratum.

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CCSS.HSS.IC.B.3

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What is the purpose of using a stratified random sample?

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The purpose of using a stratified random sample is to ensure that all subgroups of the population are adequately represented in the sample.

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CCSS.HSS.IC.B.3

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What is Sampling Bias?

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Sampling Bias occurs when the sample collected is not representative of the population, leading to inaccurate conclusions.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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What is the difference between a sample and a population?

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A population includes all members of a specified group, while a sample is a subset of the population selected for analysis.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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What is a Simple Random Sample?

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

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CCSS.HSS.IC.B.3

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What is Nonresponse Bias?

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Nonresponse Bias occurs when individuals selected for the sample do not respond, potentially skewing the results.

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CCSS.HSS.IC.B.3