https://k4i.top/zh/tags/probability/Recent content in Probability on k4i's blogHugo -- gohugo.iozhsky_io@outlook.com (K4i)sky_io@outlook.com (K4i)All content is subject to the license of <a rel="license noopener" href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> .Thu, 02 Jul 2026 10:00:00 +0800https://k4i.top/zh/posts/common-distributions-variance-std/Thu, 02 Jul 2026 10:00:00 +0800sky_io@outlook.com (K4i)Thu, 02 Jul 2026 10:00:00 +0800https://k4i.top/zh/posts/common-distributions-variance-std/<p>学概率时，很多分布看起来像一张公式清单：Bernoulli、Binomial、Poisson、Normal、Exponential、Gamma、Beta……如果只背概率质量函数或密度函数，很容易忘记它们各自回答什么问题。</p>K4ifeatured imageprobabilitystatisticsdistributionvarianceMath