Math 4: Review of Sampling Methods and Bias

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What is Sampling?

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

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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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What is Systematic Sampling?

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Systematic Sampling involves selecting every nth individual from a list or sequence.

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What is Convenience Sampling?

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Convenience Sampling is a non-probability sampling method where samples are taken from a group that is easy to reach.

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What is Voluntary Response Bias?

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Voluntary Response Bias occurs when individuals choose to participate in a survey, often leading to skewed results.

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What is Undercoverage Bias?

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Undercoverage Bias happens when some members of the population are inadequately represented in the sample.

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What is Non-Response Bias?

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Non-Response Bias occurs when individuals selected for the sample do not respond, potentially skewing results.

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What is Leading Question Bias?

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Leading Question Bias occurs when a question is phrased in a way that suggests a particular answer.

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What is Self-Selected (Volunteer) Sampling?

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Self-Selected Sampling is when individuals volunteer to participate in a survey or study.

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What is the purpose of Sampling Methods?

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Sampling Methods are used to gather data and make inferences about a population without surveying every individual.