Scatter Plots

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What is a scatter plot?

Back

A scatter plot 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

Front

What does a positive correlation indicate in a scatter plot?

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 indicate in a scatter plot?

Back

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

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean in a scatter plot?

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

Tags

CCSS.HSS.ID.B.5

Front

What is a linear association in a scatter plot?

Back

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

Tags

CCSS.8.F.A.3

Front

What is a nonlinear association in a scatter plot?

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A nonlinear 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 scatter plot?

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A positive linear association is identified by data points that slope upwards from left to right.

Tags

CCSS.HSF-LE.A.1B

Front

How can you identify a negative linear association in a scatter plot?

Back

A negative linear association is identified by data points that slope downwards from left to right.

Tags

CCSS.HSF-LE.A.1B

Front

What is an example of a positive correlation in real life?

Back

An example of a positive correlation is the relationship between study time and test scores; more study time generally leads to higher scores.

Tags

CCSS.HSS.ID.B.5

Front

What is an example of a negative correlation in real life?

Back

An example of a negative correlation is the relationship between temperature and the amount of hot chocolate sold; as temperature increases, hot chocolate sales typically decrease.

Tags

CCSS.HSS.ID.B.5