{"published":"2023-09-30 17:16:33","categories":[],"author_url":"https://blog.hatena.ne.jp/kiririmode/","title":"\u78ba\u7387\u5909\u6570\u306e\u5171\u5206\u6563\u3068\u76f8\u95a2\u4fc2\u6570","author_name":"kiririmode","blog_url":"https://kiririmode.hatenablog.jp/","description":"\u4eca\u65e5\u306f\u30012\u3064\u306e\u96e2\u6563\u7684\u78ba\u7387\u5909\u6570$X$\u3068$Y$\u306e\u548c$X+Y$\u306b\u3064\u3044\u3066\u8003\u3048\u307e\u3059\u3002 \u4e00\u90e8\u306f\u72ec\u7acb\u306a\u78ba\u7387\u5909\u6570\u306e\u548c\u304c\u5f93\u3046\u78ba\u7387\u5206\u5e03\u3068\u3001\u6b63\u898f\u5206\u5e03\u306e\u518d\u751f\u6027 - \u7406\u7cfb\u5b66\u751f\u65e5\u8a18\u3067\u884c\u3063\u305f\u3053\u3068\u3067\u3059\u304c\u6539\u3081\u3066\u3002 \u671f\u5f85\u5024 \u3053\u3053\u3067\u306f\u30012\u3064\u306e\u78ba\u7387\u5909\u6570$X$\u3068$Y$\u304c\u3068\u308b\u5024\u3068\u305d\u306e\u78ba\u7387\u3068\u306e\u5bfe\u5fdc\u3092\u793a\u3059$P(X = x_i, Y = y_j) = f(x_i, y_j)$\u3092$X$\u3068$Y$\u306e\u540c\u6642\u78ba\u7387\u95a2\u6570\u3068\u3057\u307e\u3059\u3002 \u305d\u3046\u3059\u308b\u3068\u6b21\u306e\u95a2\u6570\u304c\u5b9a\u7fa9\u3067\u304d\u3001\u3053\u308c\u3092\u305d\u308c\u305e\u308c$X$\u3068$Y$\u306e\u5468\u8fba\u78ba\u7387\u95a2\u6570\u3068\u547c\u3073\u307e\u3059\u3002 $$ \\begin{cases} f_x (x_i) \\equiv P(X = x_i) = \\sum _j f(x_i, y_j) \\newl\u2026","provider_url":"https://hatena.blog","width":"100%","url":"https://kiririmode.hatenablog.jp/entry/20230930/1696061793","version":"1.0","image_url":null,"type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20230930%2F1696061793\" title=\"\u78ba\u7387\u5909\u6570\u306e\u5171\u5206\u6563\u3068\u76f8\u95a2\u4fc2\u6570 - \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>","height":"190","provider_name":"Hatena Blog","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18"}