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What is sampling?

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Sampling is the process of selecting a subset of individuals from a larger population to estimate characteristics of the whole population.

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CCSS.HSS.IC.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 has an equal chance of being selected.

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CCSS.HSS.IC.B.3

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What is a stratified sample?

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A stratified sample is a sampling method where the population is divided into subgroups (strata) and random samples are taken from each strata.

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CCSS.HSS.IC.B.3

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What is a systematic sample?

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A systematic sample is a sampling method where individuals are selected at regular intervals from a randomly ordered list.

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CCSS.HSS.IC.B.3

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What is a convenience sample?

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A convenience sample is a sampling method where individuals are selected based on their easy availability and proximity.

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CCSS.HSS.IC.A.1

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What is voluntary response sampling?

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Voluntary response sampling is a sampling method where individuals choose to participate in the survey, often leading to biased results.

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CCSS.HSS.IC.A.1

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Why is sampling used in research?

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Sampling is used because surveying an entire population can be expensive, time-consuming, or impractical.

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CCSS.HSS.IC.A.1

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What is the importance of a representative sample?

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A representative sample accurately reflects the characteristics of the population, ensuring valid and reliable results.

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CCSS.HSS.IC.A.1

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What can skew the results of a survey?

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Factors such as location, selection bias, and non-random sampling methods can skew survey results.

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CCSS.HSS.IC.B.3

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What is the difference between random sampling and non-random sampling?

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Random sampling gives every individual an equal chance of being selected, while non-random sampling does not.

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CCSS.HSS.IC.B.3