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The Geometry of Path Coefficients and Correlations |
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| Authors: | B. Raja Rao C. C. Li |
| Abstract: | In the present paper, a generalized cosine formula is obtained for the difference between two angles in a k-dimensional Euclidean space, which is utilized to derive one of the principles of path analysis, namely, the correlation between two random variables is the sum of all connecting paths between them. |
| Keywords: | Generalized cosine formula path coefficient correlation Euclidean space regression multiple correlation |