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| 3 | P值到底是什么？ | zhixy | Sept. 23, 2022, 8:38 a.m. | 3501 |
| 4 | 概率论的创立与数学期望 | zhixy | Sept. 19, 2022, 3:41 p.m. | 1348 |
| 5 | 关于统计学中自由度的理解 | zhixy | Sept. 17, 2022, 2:52 p.m. | 2512 |
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