Scatterplots Correlation

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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 tends to increase.

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 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 the purpose of using scatterplots?

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Scatterplots are used to visually represent the relationship between two variables and to identify patterns, trends, or correlations.

Tags

CCSS.8.SP.A.1

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How can you identify a positive correlation in a scatterplot?

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A positive correlation can be identified when the data points slope upwards from left to right.

Tags

CCSS.HSS.ID.B.5

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How can you identify a negative correlation in a scatterplot?

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A negative correlation can be identified when the data points slope downwards from left to right.

Tags

CCSS.HSS.ID.B.5

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What does a scatterplot with no correlation look like?

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A scatterplot with no correlation shows data points that are randomly scattered without any discernible pattern.

Tags

CCSS.HSS.ID.B.5

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What is the range of correlation coefficients?

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The range of correlation coefficients is from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation.

Tags

CCSS.HSS.ID.B.5

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What is an example of a positive correlation?

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An example of a positive correlation is the relationship between hours studied and test scores; generally, more study hours lead to higher scores.

Tags

CCSS.HSS.ID.B.5