Y12 1.03 Types of Samples

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What is a sample in research?

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A part of a population used to collect data

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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Which sampling technique involves dividing the population into subgroups?

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Stratified sampling

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CCSS.HSS.IC.B.3

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How is a random sample obtained?

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By giving every member an equal chance of being selected

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CCSS.HSS.IC.B.3

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What is the main difference between cluster sampling and stratified sampling?

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Stratified sampling's subgroups have similar characteristics, unlike cluster sampling

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Systematic sample

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A sample where members are selected at regular intervals from a starting number

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CCSS.HSS.IC.B.3

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What is a potential drawback of convenience sampling?

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It often leads to biased results

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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How can researchers obtain a random sample using technology?

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By using a random number table

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CCSS.HSS.IC.B.3

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What is the purpose of dividing a population into clusters for sampling?

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To make the sampling process more cost-effective and efficient

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CCSS.HSS.IC.B.3

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Sampling error

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The difference between the results of a sample and the actual population

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CCSS.HSS.IC.B.3

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Which sampling method involves selecting members at regular intervals?

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Systematic sampling

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CCSS.HSS.IC.B.3