Chapter 10: Sampling

Front

What is a Random Sample?

Back

A sample in which each individual or object in the entire population has an equal chance of being selected.

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CCSS.HSS.IC.B.3

Front

Why do we use sampling in statistics?

Back

Because the population is often so large that surveying or measuring all is expensive or impossible.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Systematic Sampling?

Back

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

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CCSS.HSS.IC.B.3

Front

What is Convenience Sampling?

Back

A sampling method where individuals are selected based on their easy availability.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is a representative sample?

Back

A sample that accurately reflects the characteristics of the population as a whole.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Stratified Sampling?

Back

A sampling method that involves dividing the population into subgroups and randomly selecting from each.

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CCSS.HSS.IC.B.3

Front

What is the difference between Population and Sample?

Back

Population refers to the entire group being studied, while a sample is a subset of that population.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Bias in sampling?

Back

A systematic error that leads to an unrepresentative sample.

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CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is Simple Random Sampling?

Back

A sampling method where every individual has an equal chance of being selected, typically using random number generators.

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CCSS.HSS.IC.B.3

Front

What is the purpose of a survey?

Back

To gather information or opinions from a group of individuals.