Friday, March 7, 2008

Correlation

From Statistics a gentle introduction, Frederick.

Correlation is a statistical method that determines the degree of relationship between two different variable. It is also known as a "bivariate" statistic, with bi meaning two and variate indicating variable. The correlation can only range from -1.00 to +1.00(note that the typical correlation coefficient is reported to two decimal places).
But just because two variables are correlated, it does not mean that one variable caused the other.

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