AP Stats Sampling/Bias

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What is a sampling method?

Back

A sampling method is a technique used to select individuals from a population to participate in a study, ensuring that the sample represents the population accurately.

Front

Define Simple Random Sample (SRS).

Back

A Simple Random Sample (SRS) is a sampling method where every individual in the population has an equal chance of being selected.

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What is a Cluster Sample?

Back

A Cluster Sample involves dividing the population into groups (clusters) and then randomly selecting entire clusters to be included in the sample.

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What is a Census?

Back

A Census is a survey that attempts to collect data from every individual in the population, providing complete information.

Front

Define Stratified Random Sample.

Back

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

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What is Convenience Sampling?

Back

Convenience Sampling is a non-probability sampling method where individuals are selected based on their easy availability and proximity to the researcher.

Front

Explain Systematic Sampling.

Back

Systematic Sampling involves selecting every nth individual from a list of the population after a random starting point.

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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 in the selection process, leading to unrepresentative samples.

Front

Identify the Population in a study.

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The Population in a study refers to the entire group of individuals or instances about whom we seek to learn.

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What is the difference between Population and Sample?

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The Population is the whole group being studied, while a Sample is a subset of the population selected for analysis.