Scatterplots

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What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Tags

CCSS.8.SP.A.1

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What does a positive correlation indicate in a scatterplot?

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A positive correlation indicates that as one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

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What does a negative correlation indicate in a scatterplot?

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A negative correlation indicates that as one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

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What does no correlation mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not affect the other.

Tags

CCSS.HSS.ID.B.5

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What is an outlier in a scatterplot?

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

Tags

CCSS.8.SP.A.1

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How can you identify an outlier in a scatterplot?

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An outlier can be identified as a point that is far away from the cluster of other points.

Tags

CCSS.8.SP.A.1

Front

What is the correlation coefficient?

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The correlation coefficient is a numerical measure of the strength and direction of a linear relationship between two variables.

Tags

CCSS.HSS.ID.C.8

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What does a correlation coefficient of 1 indicate?

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A correlation coefficient of 1 indicates a perfect positive linear relationship between two variables.

Tags

CCSS.HSS.ID.B.5

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What does a correlation coefficient of -1 indicate?

Back

A correlation coefficient of -1 indicates a perfect negative linear relationship between two variables.

Tags

CCSS.HSS.ID.B.5

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5