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Correlation Coefficient Revisited |
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| Authors: | Qi Zheng James H Matis |
| Institution: | 1. Department of Statistics , Texas A&2. M University , College Station , TX , 77843-3143 , USA |
| Abstract: | Elementary approaches to prove basic properties of the correlation coefficient are of pedagogical interest. Besides posing another proof, this article gives variations of the proofs already existing in the statistical literature |
| Keywords: | Cauchy–Schwarz inequality LaGrange's identity |