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Die tabel hieronder gee die bivariate verdeling van X en Y: / The bivariate distribution of X and Y is described here.
| X | |
Y | 1 | 2 |
1 | 0.28 | 0.42 |
2 | 0.12 | 0.18 |
Bereken die variansie van X+Y. / Calculate the variance of X+Y.
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