Statistics Vocabulary

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What is a population in statistics?

Back

The entire group of individuals or items that we want to learn about.

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What is a sample in statistics?

Back

A subset of the population selected for analysis.

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What is simple random sampling?

Back

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

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What is voluntary sampling?

Back

A sampling method where individuals choose to participate in the survey.

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What is convenience sampling?

Back

A sampling method that involves selecting individuals who are easiest to reach.

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What is systematic random sampling?

Back

A sampling method where you select every nth individual from a list.

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What is a survey?

Back

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

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What is a statistic?

Back

A numerical value that summarizes or describes a characteristic of a sample.

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What is a parameter?

Back

A numerical value that summarizes or describes a characteristic of a population.

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What is bias in sampling?

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A systematic error that leads to an incorrect representation of the population.