Sampling Methods Flashcard

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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. For example, interviewing every 10th student who enters the school.

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What is voluntary response sampling?

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Voluntary response sampling is a method where individuals choose to participate in a survey or study, often leading to biased results. An example is asking customers if they want to share their opinions.

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Define population in statistics.

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A population is the entire group of individuals or items that is the subject of a statistical study.

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What is convenience sampling?

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Convenience sampling is a method where samples are taken from a group that is easily accessible, which may not represent the entire population.

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What is the difference between a sample and a population?

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A sample is a subset of a population used to represent the whole, while a population includes all individuals or items being studied.

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What is bias in sampling?

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Bias in sampling occurs when certain individuals or groups are systematically favored over others, leading to unrepresentative results.

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What is simple random sampling?

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Simple random sampling is a method where every individual has an equal chance of being selected, ensuring that the sample is representative of the population.

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What is stratified sampling?

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Stratified sampling involves dividing the population into subgroups (strata) and taking a sample from each stratum to ensure representation.

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What is a sample?

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A sample is a smaller group selected from a population for the purpose of conducting a study.

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What is the purpose of sampling in statistics?

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The purpose of sampling is to gather data and make inferences about a population without having to study the entire group.