scatterplot

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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 a positive correlation in a scatterplot indicate?

Back

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

Tags

CCSS.HSS.ID.B.5

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What does a negative correlation in a scatterplot indicate?

Back

A negative correlation indicates 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 mean in a scatterplot?

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

Tags

CCSS.HSS.ID.B.5

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatterplot, showing the general direction of the data points.

Tags

CCSS.8.EE.B.5

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How can you estimate values using a scatterplot?

Back

You can estimate values by locating the corresponding point on the scatterplot and using the line of best fit to find the approximate value.

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What is the purpose of using a scatterplot?

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The purpose of using a scatterplot is to visually display the relationship between two quantitative variables.

Tags

CCSS.8.SP.A.1

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What does it mean if the points on a scatterplot are tightly clustered around the line of best fit?

Back

If the points are tightly clustered around the line of best fit, it indicates a strong correlation between the two variables.

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What does it mean if the points on a scatterplot are widely spread out?

Back

If the points are widely spread out, it indicates a weak correlation between the two variables.

Tags

CCSS.HSS.ID.B.5

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How do you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the points on the scatterplot form a pattern that can be approximated by a straight line.

Tags

CCSS.8.F.A.3