Populations and Sampling

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What is a population in statistics?

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The entire group of objects or individuals considered for a survey.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a sample in statistics?

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A subset of the population selected for the survey.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the best method to achieve unbiased results in a survey?

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Randomly selecting individuals from the population.

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CCSS.HSS.IC.B.3

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What is a biased sample?

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A sample that does not accurately represent the population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is an unbiased sample?

Back

A sample that accurately represents the population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the purpose of sampling?

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To gather information about a population without surveying every individual.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is systematic sampling?

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A method where every nth individual is selected from a list.

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CCSS.HSS.IC.B.3

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What is convenience sampling?

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A method where individuals are selected based on ease of access.

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CCSS.HSS.IC.B.3

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What is stratified sampling?

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A method where the population is divided into subgroups and random samples are taken from each.

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CCSS.HSS.IC.B.3

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics, while quantitative data involves numerical measurements.