Scatter Plot Correlation/Predictions

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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.

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CCSS.8.SP.A.1

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What does a positive correlation indicate in a scatter plot?

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

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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.

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CCSS.HSS.ID.B.5

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What does no correlation mean in a scatter plot?

Back

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

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CCSS.HSS.ID.B.5

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How can you identify a positive correlation in a scatter plot?

Back

A positive correlation can be identified by a trend line that slopes upwards from left to right.

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CCSS.HSF-LE.A.1B

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How can you identify a negative correlation in a scatter plot?

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A negative correlation can be identified by a trend line that slopes downwards from left to right.

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What is a trend line in a scatter plot?

Back

A trend line is a straight line that best represents the data points in a scatter plot, showing the general direction of the relationship between the variables.

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How do you use a trend line to make predictions?

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You can use a trend line to predict the value of one variable based on the value of another by finding the corresponding point on the line.

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CCSS.8.EE.B.5

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What is the purpose of analyzing scatter plots?

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The purpose of analyzing scatter plots is to understand the relationship between two variables and to make predictions based on that relationship.

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CCSS.HSS.ID.B.5

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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.

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CCSS.HSS.ID.C.9