Correlation Coefficient Matching

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What is a correlation coefficient?

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A correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

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CCSS.HSS.ID.C.8

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What does a correlation coefficient of -1 indicate?

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A correlation coefficient of -1 indicates a perfect negative linear relationship between two variables.

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CCSS.HSS.ID.B.5

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What does a correlation coefficient of 0 indicate?

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A correlation coefficient of 0 indicates no linear relationship between two variables.

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CCSS.HSS.ID.B.5

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What does a correlation coefficient of 1 indicate?

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A correlation coefficient of 1 indicates a perfect positive linear relationship between 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 range of correlation coefficients is from -1 to 1.

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CCSS.HSS.ID.B.5

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What does a correlation coefficient of -0.72 suggest about the relationship between two variables?

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A correlation coefficient of -0.72 suggests a strong negative linear relationship between the two variables.

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CCSS.HSS.ID.B.5

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What does a correlation coefficient of -0.42 suggest about the relationship between two variables?

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A correlation coefficient of -0.42 suggests a moderate negative linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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What does a correlation coefficient of -0.90 suggest about the relationship between two variables?

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A correlation coefficient of -0.90 suggests a very strong negative linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

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How can you visually represent correlation?

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Correlation can be visually represented using a scatter plot, where each point represents an observation.

Tags

CCSS.HSS.ID.B.5

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What is a scatter plot?

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A scatter plot is a graph that shows the relationship between two quantitative variables, with one variable plotted along the x-axis and the other along the y-axis.