Population vs. Sample

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What is a Population in statistics?

Back

A Population is the entire group of individuals or items that we want to study or draw conclusions about.

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What is a Sample in statistics?

Back

A Sample is a subset of the population selected for analysis, used to make inferences about the population.

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What is the difference between Population and Sample?

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Population includes all members of a defined group, while a Sample is a smaller group selected from that population.

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What is an example of a Population?

Back

The political party of every U.S. President.

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What is an example of a Sample?

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300 undergraduate students from three universities who volunteered for a psychology research study.

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What does it mean to find the Mode in a data set?

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The Mode is the number that appears most frequently in a data set.

Front

Given the data set: 12, 10, 10, 10, 13, 12, 11, 13, 10, what is the Mode?

Back

10

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What is the significance of using a Sample in research?

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Using a Sample allows researchers to gather data and make conclusions without needing to study the entire Population, which can be impractical.

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What is an example of a Population in a business context?

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The revenue of each of the 30 companies in the Dow Jones Industrial Average.

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What is an example of a Sample in a job search context?

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The top 50 search results for advertisements for IT jobs in the Netherlands.