Correlation

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What is correlation?

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Correlation is a statistical measure that describes the extent to which two variables change together. It indicates the strength and direction of a linear relationship between the variables.

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CCSS.HSS.ID.C.9

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What are the types of correlation?

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The types of correlation include positive correlation, negative correlation, and no correlation (zero correlation).

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CCSS.HSS.ID.B.5

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What does a positive correlation indicate?

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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?

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 is a zero correlation?

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A zero correlation indicates that there is no relationship between the changes in the two variables.

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CCSS.HSS.ID.B.5

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What is the range of correlation coefficients?

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The correlation coefficient ranges from -1 to +1, where -1 indicates a perfect negative correlation, +1 indicates a perfect positive correlation, and 0 indicates no correlation.

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CCSS.HSS.ID.B.5

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What is a strong correlation?

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A strong correlation is indicated by a correlation coefficient close to -1 or +1, suggesting a strong linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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What is a weak correlation?

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A weak correlation is indicated by a correlation coefficient close to 0, suggesting a weak linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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How can correlation be visually represented?

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Correlation can be visually represented using a scatter plot, where each point represents an observation and the pattern of points indicates the type of correlation.

Tags

CCSS.HSS.ID.B.5

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What is the difference between correlation and causation?

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Correlation does not imply causation; just because two variables are correlated does not mean that one variable causes the other to change.

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CCSS.HSS.ID.C.9