Sampling Methods - DS

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What is Convenience Sampling?

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A sampling method where the sample is taken from a group that is easily accessible, rather than randomly selected.

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What is Systematic Sampling?

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A sampling method where every nth individual is selected from a list or queue.

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What is Simple Random Sampling (SRS)?

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A sampling method where every individual has an equal chance of being selected.

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What is Voluntary Response Sampling?

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A sampling method where individuals choose to participate, often leading to biased results.

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What is Cluster Sampling?

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A sampling method where the population is divided into clusters, and entire clusters are randomly selected.

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What is Stratified Sampling?

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A sampling method where the population is divided into subgroups (strata) and random samples are taken from each stratum.

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Why is Convenience Sampling often not representative?

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It may not accurately reflect the entire population because it only includes those who are easily accessible.

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What is the main disadvantage of Voluntary Response Sampling?

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It can lead to bias because only those with strong opinions are likely to respond.

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How does Systematic Sampling differ from Simple Random Sampling?

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Systematic Sampling uses a fixed interval to select samples, while SRS selects individuals randomly without a fixed pattern.

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What is the purpose of using different sampling methods?

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To obtain a representative sample that can provide accurate insights about the population.