AP Stats Chapters 3-4 Review

Front

What is a response variable in a study?

Back

A response variable is the outcome or the variable that is measured in an experiment to see how it is affected by changes in other variables.

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CCSS.HSS.ID.A.4

Front

What is a convenience sample?

Back

A convenience sample is a type of non-probability sampling where the sample is taken from a group of people easy to contact or reach.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

Front

What are the major principles of good experimental design?

Back

The major principles include Comparison to a control, Replication, Randomization, and Blocking.

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CCSS.HSS.IC.B.3

Front

What does a positive association in a scatterplot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

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CCSS.HSS.ID.B.5

Front

What is an outlier in a dataset?

Back

An outlier is a data point that differs significantly from other observations in the dataset.

Front

What is a residual in statistics?

Back

A residual is the difference between the observed value and the predicted value of a regression model.

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CCSS.HSS.ID.B.6B

Front

What is the purpose of randomization in experiments?

Back

Randomization helps to eliminate bias by ensuring that each participant has an equal chance of being assigned to any group.

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CCSS.HSS.IC.B.3

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of the population used for analysis.

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CCSS.HSS.IC.A.1

CCSS.7.SP.A.1

Front

What is the role of replication in experiments?

Back

Replication involves repeating an experiment to confirm the results and ensure reliability.

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CCSS.HSS.IC.B.3

Front

What does blocking mean in experimental design?

Back

Blocking is a technique used to control for variables that could affect the outcome by grouping similar experimental units.

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CCSS.HSS.IC.B.3