{"provider_url":"https://hatena.blog","provider_name":"Hatena Blog","blog_url":"https://kiririmode.hatenablog.jp/","title":"\u30ac\u30f3\u30de\u95a2\u6570\u306e\u6027\u8cea","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20231023%2F1697986887\" title=\"\u30ac\u30f3\u30de\u95a2\u6570\u306e\u6027\u8cea - \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>","description":"$Z \\sim \\chi ^2 (n)$\u3092\u8a3c\u660e\u3059\u308b\u305f\u3081\u306b \u7d71\u8a08\u5b66\u3067\u306f$\\chi ^2$\u5206\u5e03\u3068\u3044\u3046\u78ba\u7387\u5206\u5e03\u3092\u5b66\u3073\u307e\u3059\u3002\u3053\u306e\u5206\u5e03\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u6587\u8108\u3067\u3042\u3089\u308f\u308c\u307e\u3059\u3002 \u78ba\u7387\u5909\u6570$Z _{1}, Z _{2}, \\cdots, Z _{n}$\u304c\u4e92\u3044\u306b\u72ec\u7acb\u306b\u6a19\u6e96\u6b63\u898f\u5206\u5e03$N(0,1)$\u306b\u3057\u305f\u304c\u3046\u3068\u304d\u3001$W=\\sum _{i=1} ^{n} Z _{i} ^{2}$\u306e\u5f93\u3046\u5206\u5e03\u3092\u81ea\u7531\u5ea6$n$\u306e$\\chi ^{2}$\u5206\u5e03\u3068\u547c\u3073\u3001$\\chi ^{2} (n)$\u3068\u8868\u3059\u3002 \u3053\u3053\u3067\u3001$\\chi ^{2} (n)$\u306e\u78ba\u7387\u5bc6\u5ea6\u95a2\u6570\u306f\u6b21\u306e\u3088\u3046\u306a\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002 $$ f _{n}(x) = \\frac{1}{2 ^{\\frac\u2026","height":"190","type":"rich","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","categories":[],"url":"https://kiririmode.hatenablog.jp/entry/20231023/1697986887","version":"1.0","author_url":"https://blog.hatena.ne.jp/kiririmode/","image_url":null,"published":"2023-10-23 00:01:27","author_name":"kiririmode"}