{"blog_title":"(\u4fdd\u5b58\u7528) \u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 \u30e1\u30e2\u7de8","description":"\u5e73\u5747\u3068\u5206\u6563\u306f\u6700\u3082\u57fa\u672c\u7684\u306a\u6982\u5ff5\u3060\u308d\u3046\u304c\u3001\u3053\u308c\u3055\u3048\u3082\u66d6\u6627\u3060\u3063\u305f\u308a\u30a4\u30a4\u30ab\u30b2\u30f3\u3060\u3063\u305f\u308a\u3002\u78ba\u7387\u5909\u6570 X:\u03a9\u2192R \u306b\u5bfe\u3059\u308b\u671f\u5f85\u5024 E[X] \u306f\u3001\u03a9\u4e0a\u306e\u78ba\u7387\u6e2c\u5ea6P\u306b\u3088\u308b\u5b9f\u53ef\u6e2c\u95a2\u6570X\u306e\u7a4d\u5206\u3068\u3057\u3066\u5b9a\u7fa9\u3067\u304d\u308b\u3002\u78ba\u7387\u5909\u6570\uff08random variable, RV\uff09\u306e\u7a7a\u9593\u3092 RV(\u03a9, P, R) \u3068\u3059\u308b\u3068\u3001\u671f\u5f85\u5024E\u306f\u3001RV(\u03a9, P, R)\u2192R \u3068\u3044\u3046\u6c4e\u95a2\u6570\u306b\u306a\u308b\u3002\u3053\u306e\u6c4e\u95a2\u6570\u3092\u5e73\u5747\u3068\u547c\u3076\u3053\u3068\u304c\u3042\u308b\u3002\u7b97\u8853\u5e73\u5747\u5024\u95a2\u6570meann\u306f\u3001Rn\u2192R \u3068\u3044\u3046\u95a2\u6570\u3067\u3042\u308b\u3002\u7b97\u8853\u5e73\u5747\u5024\u95a2\u6570\u3092\u3001\u78ba\u7387\u5909\u6570X\u306en-\u78ba\u7387\u6a19\u672c X(n) \u3068\u7d50\u5408\u3057\u305f meann(X(n)) = X(n);meann \u304c\u7b97\u8853\u5e73\u5747\u91cf\u78ba\u7387\u5909\u6570\u3068\u306a\u308b\u3002\u6b21\u306f\u5225\u7269\u3067\u3042\u308b\u3002 \u671f\u5f85\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm-hiyama-memo.hatenablog.jp%2Fentry%2F20150818%2F1439889213\" title=\"\u5e73\u5747\u3068\u5206\u6563 - (\u4fdd\u5b58\u7528) \u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 \u30e1\u30e2\u7de8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://m-hiyama-memo.hatenablog.jp/","provider_name":"Hatena Blog","version":"1.0","author_name":"m-hiyama-memo","categories":["\u78ba\u7387\u7d71\u8a08","\u7528\u8a9e\u6cd5","\u30c0\u30e1\u51fa\u3057"],"width":"100%","title":"\u5e73\u5747\u3068\u5206\u6563","height":"190","published":"2015-08-18 18:13:33","url":"https://m-hiyama-memo.hatenablog.jp/entry/20150818/1439889213","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/m-hiyama-memo/","type":"rich","image_url":null}