Statistics Vocabulary

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What is the population in a survey?

Back

The population is the entire group of individuals or instances about whom we hope to learn.

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What is a Representative Sample?

Back

A sample where characteristics accurately reflect those of the larger population from which the sample is being selected.

Front

What does it mean for a sample to be representative?

Back

It means the sample accurately reflects the characteristics of the general population.

Front

What is a Random Sample?

Back

A sample that is selected randomly from the population, giving each individual an equal chance of being chosen.

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What is a Convenience Sample?

Back

A sample that is taken from a group that is easy to reach, which may not represent the entire population.

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What is a Systematic Sample?

Back

A sample obtained by selecting every nth individual from a list or sequence.

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What is a Voluntary Sample?

Back

A sample consisting of individuals who choose to participate, often leading to bias.

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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 make inferences about the population.

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What is Sampling Bias?

Back

A bias that occurs when the sample is not representative of the population, leading to inaccurate conclusions.

Front

What is a Survey?

Back

A method of collecting data by asking questions to a group of people.