Sampling Techniques and Vocab Review

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What is simple random sampling?

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A sampling technique where each member of the population has an equal chance of being selected.

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What is the population in a study?

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The entire group of individuals or instances about whom we hope to learn.

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What is sampling without replacement?

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Once an individual is selected, they are removed from the population and cannot be chosen again.

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What is undercoverage in sampling?

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When the proportion of one group in the population is lower in a sample than it is in the population.

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What is bias in sampling?

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Consistent, repeated results that are not close to the population parameter.

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What is systematic sampling?

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A sampling method where you select every nth individual from a list or sequence.

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What is stratified sampling?

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A sampling technique that involves dividing the population into subgroups and taking a sample from each.

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What is cluster sampling?

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A sampling method where entire groups or clusters are randomly selected.

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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 measurements.

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What is a sample?

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A subset of the population selected for analysis.