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New Developments in Statistical Competing |
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| Authors: | William J. Kennedy Section Editor |
| Affiliation: | Statistics, Department of Mathematics , Université du Québec à Trois-Rivières , Québec , Canada , G9A 5H7 |
| Abstract: | By surrounding the sample plot with a kind of birthday balloon, we can guess the value of Pearson's correlation coefficient, r, in a very simple way. |
| Keywords: | Correlation coefficient Graphical guessing Sample plot |