How is a linear relationship between 2 variables measured in statistics? Explain.

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How is a linear relationship between 2 variables measured in statistics? Explain.

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There are several numerical measures of correlation, called correlation coefficients.

The correlation coefficients ranges from -1 to 1. Values closer to 0 show a strong linear relationship.

The correlation coefficients ranges from -1 to 1. Values close to +1 or -1 show a strong linear relationship.

If the values of x and y are interchanged, the correlation coefficients remains the same.

The value of the coefficient is resistant to outliers.

 

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