{"blog_url":"https://kiririmode.hatenablog.jp/","image_url":null,"width":"100%","height":"190","provider_name":"Hatena Blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20231028%2F1698462132\" title=\"\u30ab\u30a4\u4e8c\u4e57\u5206\u5e03\u306e\u671f\u5f85\u5024\u3068\u5206\u6563 - \u7406\u7cfb\u5b66\u751f\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","author_name":"kiririmode","description":"\u81ea\u7531\u5ea6$n$\u306e\u30ab\u30a4\u4e8c\u4e57\u5206\u5e03\u306e\u671f\u5f85\u5024\u3068\u5206\u6563\u3092\u6c42\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u524d\u63d0\u3068\u3057\u3066\u3001\u81ea\u7531\u5ea6$n$\u306e\u30ab\u30a4\u4e8c\u4e57\u5206\u5e03\u306e\u78ba\u7387\u5bc6\u5ea6\u95a2\u6570\u306f\u6b21\u306e\u5f0f\u3067\u8868\u305b\u307e\u3057\u305f\u3002 $$ f _{n}(x) = \\frac{1}{2 ^{\\frac{n}{2}}\\Gamma \\left(\\frac{n}{2}\\right)} x ^{\\frac{n}{2}-1} e ^{-\\frac{x}{2}} $$ \u671f\u5f85\u5024 \u671f\u5f85\u5024\u306e\u5b9a\u7fa9\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002 $$ \\begin{align} E(X) &= \\int _{0} ^{\\infty} x \\frac{1}{2 ^{\\frac{n}{2}}\\Gamma \\left(\\frac{n}{2}\u2026","url":"https://kiririmode.hatenablog.jp/entry/20231028/1698462132","author_url":"https://blog.hatena.ne.jp/kiririmode/","version":"1.0","title":"\u30ab\u30a4\u4e8c\u4e57\u5206\u5e03\u306e\u671f\u5f85\u5024\u3068\u5206\u6563","categories":["statistics"],"published":"2023-10-28 12:02:12","provider_url":"https://hatena.blog"}