Sampling Methods in Surveys

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What is a sampling method?

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A sampling method is a technique used to select individuals or groups from a larger population to gather data and make inferences about that population.

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CCSS.HSS.IC.B.3

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What is a representative sample?

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A representative sample accurately reflects the characteristics of the larger population from which it is drawn.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is random sampling?

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Random sampling is a method where each member of the population has an equal chance of being selected, reducing bias.

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CCSS.HSS.IC.B.3

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Why is it important to have a representative sample in surveys?

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A representative sample ensures that the results of the survey can be generalized to the entire population, leading to more accurate conclusions.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a biased sample?

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A biased sample is one that does not accurately represent the population, often leading to skewed results.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is convenience sampling?

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

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is stratified sampling?

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Stratified sampling involves dividing the population into subgroups (strata) and randomly selecting samples from each stratum.

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CCSS.HSS.IC.B.3

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical values that can be measured.

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What is the purpose of a survey?

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The purpose of a survey is to collect information from a group of people to understand their opinions, behaviors, or characteristics.

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What is sampling error?

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Sampling error is the difference between the results obtained from a sample and the actual characteristics of the population.

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CCSS.HSS.IC.B.3