WARM UP: 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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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

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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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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Example of a population: Everyone in your school. What does this represent?

Back

This represents the entire group of students in that school.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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Example of a sample: One classroom in a school. What does this represent?

Back

This represents a smaller group selected from the larger population of all students in the school.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the difference between a population and a sample?

Back

A population includes all members of a defined group, while a sample includes only a portion of that group.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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In a survey of shoppers in a mall, who is the population?

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The population is all shoppers in the mall.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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In a study of Ms. Young's students, what is the sample if 34% received A's?

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The sample is the 34% of Ms. Young's students who received A's.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

Why is it important to distinguish between population and sample?

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Distinguishing between population and sample is crucial for accurate data analysis and to avoid bias in results.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a census?

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A census is a survey that attempts to collect data from every member of the population.

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CCSS.6.SP.B.5A

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What is sampling bias?

Back

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

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1