Random Sampling

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What is random sampling?

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Random sampling is a technique used to select a subset of individuals from a larger population, where each individual has an equal chance of being chosen.

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CCSS.HSS.IC.B.3

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Why is random sampling important?

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Random sampling is important because it helps ensure that the sample is representative of the population, reducing bias and allowing for more accurate conclusions.

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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 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 the difference between random sampling and convenience sampling?

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Random sampling involves selecting individuals randomly from the population, while convenience sampling involves selecting individuals who are easiest to reach.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

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What is systematic sampling?

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

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CCSS.HSS.IC.B.3

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What is stratified sampling?

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

Tags

CCSS.HSS.IC.B.3

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What is the purpose of conducting a survey?

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The purpose of conducting a survey is to gather information or opinions from a group of people to understand trends, preferences, or behaviors.

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What is bias in sampling?

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Bias in sampling occurs when certain individuals or groups are more likely to be selected than others, leading to an unrepresentative sample.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a sample size?

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Sample size refers to the number of individuals included in a sample, which can affect the reliability of the survey results.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the role of randomness in sampling?

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Randomness in sampling helps eliminate selection bias and ensures that every individual has an equal chance of being included.

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CCSS.HSS.IC.B.3