Sampling Methods

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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 Biased Sample?

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A biased sample is one that does not accurately represent the population, leading to skewed results.

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What is an Unbiased Sample?

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An unbiased sample accurately reflects the characteristics of the population, allowing for valid conclusions.

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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 from the population.

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What is Systematic Random Sampling?

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Systematic random sampling involves selecting every nth individual from a list of the population.

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What is Convenience Sampling?

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Convenience sampling is a non-random method where samples are taken from a group that is easily accessible.

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What is Voluntary Response Sampling?

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Voluntary response sampling involves individuals choosing to participate in a survey, often leading to bias.

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Why is Random Selection Important in Sampling?

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Random selection helps reduce bias and ensures that the sample is representative of the population.

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What is the difference between Population and Sample?

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A population includes all members of a specified group, while a sample is a subset of that population.

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What is a Sampling Frame?

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A sampling frame is a list of individuals from which a sample is drawn.