Scatterplots - Identify association

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What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Tags

CCSS.8.SP.A.1

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What does it mean if a scatterplot shows a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

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What does it mean if a scatterplot shows a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

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What does 'no correlation' indicate in a scatterplot?

Back

No correlation indicates that there is no discernible relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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What is a linear association in a scatterplot?

Back

A linear association means that the data points can be approximated by a straight line.

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What is a non-linear association in a scatterplot?

Back

A non-linear association means that the relationship between the variables cannot be represented by a straight line.

Tags

CCSS.8.F.A.3

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How can you identify a positive linear association in a scatterplot?

Back

A positive linear association is identified when the points slope upwards from left to right.

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How can you identify a negative linear association in a scatterplot?

Back

A negative linear association is identified when the points slope downwards from left to right.

Tags

CCSS.HSF-LE.A.1B

Front

What is the significance of the slope in a linear association?

Back

The slope indicates the direction and steepness of the relationship between the two variables.

Tags

CCSS.8.EE.B.5

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What does it mean if a scatterplot is described as 'non-linear and positive'?

Back

It means that while the relationship between the variables is positive, it does not follow a straight line.

Tags

CCSS.8.F.A.3