Population vs. Sample

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What is a population in statistics?

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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

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What is a sample in statistics?

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A sample is a subset of the population that is selected for the purpose of conducting a study.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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How do you identify the population in a survey?

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The population is identified as the entire group that the survey aims to understand or make conclusions about.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the difference between a population and a sample?

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A population includes all members of a specified 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 the context of a survey, what does it mean to generalize results?

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To generalize results means to apply findings from a sample to the larger population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a representative sample?

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A representative sample accurately reflects the characteristics of the population from which it is drawn.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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Why is it important to have a large sample size?

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A larger sample size reduces the margin of error and increases the reliability of the results.

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CCSS.HSS.IC.B.4

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What is sampling bias?

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Sampling bias occurs when the sample is not representative of the population, leading to skewed results.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a convenience sample?

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A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easily accessible.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is random sampling?

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Random sampling is a technique where each member of the population has an equal chance of being selected for the sample.

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CCSS.HSS.IC.B.3