Scatterplots

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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

Front

What does a positive relationship in a scatterplot indicate?

Back

A positive relationship 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 relationship in a scatterplot indicate?

Back

A negative relationship 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 relationship' mean in the context of a scatterplot?

Back

'No relationship' means that there is no discernible pattern or correlation between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is a trend line in a scatterplot?

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A trend line 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 use a trend line to make predictions?

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You can use a trend line to estimate the value of one variable based on the value of another variable by finding where the value intersects the trend line.

Tags

CCSS.8.EE.B.5

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What is correlation in statistics?

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Correlation is a statistical measure that describes the extent to which two variables change together.

Tags

CCSS.HSS.ID.C.9

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What is the difference between correlation and causation?

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Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.

Tags

CCSS.HSS.ID.C.9

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What does a scatterplot with a strong correlation look like?

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A scatterplot with a strong correlation will have points that are closely clustered around the trend line.

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What does a scatterplot with a weak correlation look like?

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A scatterplot with a weak correlation will have points that are more spread out and do not closely follow the trend line.

Tags

CCSS.HSS.ID.B.5