{"id":5324,"date":"2022-03-13T21:43:00","date_gmt":"2022-03-13T12:43:00","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=5324"},"modified":"2022-06-04T23:04:11","modified_gmt":"2022-06-04T14:04:11","slug":"expected-value","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/expected-value.html","title":{"rendered":"\u78ba\u7387\u5909\u6570\u306e\u671f\u5f85\u5024\u306e\u8a08\u7b97\u3068\u78ba\u7387\u5206\u5e03\uff1a\u671f\u5f85\u5024\u306e\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee"},"content":{"rendered":"\n<p>\u4e00\u3064\u306e\u64cd\u4f5c\u3092\u3059\u308b\u3068\u304d\u3001\u3069\u306e\u3088\u3046\u306a\u7d50\u679c\u3092\u5f97\u3089\u308c\u308b\u306e\u304b\u4e88\u6e2c\u3059\u308b\u305f\u3081\u306e\u6307\u6a19\u3068\u3057\u3066\u671f\u5f85\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u671f\u5f85\u5024\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u5c06\u6765\u306e\u7d50\u679c\u3092\u4e88\u6e2c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306b\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u306e\u304c\u78ba\u7387\u5909\u6570\u3068\u78ba\u7387\u5206\u5e03\u3067\u3059\u3002\u78ba\u7387\u5909\u6570\u3068\u78ba\u7387\u5206\u5e03\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u671f\u5f85\u5024\u306e\u8a08\u7b97\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u671f\u5f85\u5024\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u3042\u308b\u30b2\u30fc\u30e0\u306b\u53c2\u52a0\u3059\u308b\u306e\u304c\u6709\u5229\u306a\u306e\u304b\u3001\u305d\u308c\u3068\u3082\u4e0d\u5229\u306a\u306e\u304b\u5224\u65ad\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u78ba\u7387\u5909\u6570\u306e\u671f\u5f85\u5024\u306b\u3064\u3044\u3066\u3001\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u3069\u308c\u3060\u3051\u306e\u3070\u3089\u3064\u304d\u304c\u3042\u308b\u306e\u304b\u8868\u3059\u306e\u304c\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3067\u3059\u3002<\/p>\n<p>\u7d71\u8a08\u5b66\u3092\u5c02\u653b\u3057\u3066\u3044\u308b\u4eba\u306b\u9650\u3089\u305a\u3001\u591a\u304f\u306e\u4eba\u306b\u3068\u3063\u3066\u671f\u5f85\u5024\u306e\u6982\u5ff5\u306f\u91cd\u8981\u3067\u3059\u3002\u305d\u3053\u3067\u671f\u5f85\u5024\u3092\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u3001\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3092\u6c42\u3081\u308c\u3070\u3044\u3044\u306e\u304b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u78ba\u7387\u5909\u6570\u30fb\u78ba\u7387\u5206\u5e03\u3068\u306f\u4f55\u304b<\/h2>\n<p>\u307e\u305a\u3001\u78ba\u7387\u5909\u6570\u3084\u78ba\u7387\u5206\u5e03\u3068\u306f\u4f55\u306a\u306e\u3067\u3057\u3087\u3046\u304b\u3002<span style=\"color: #0000ff;\">\u4e00\u3064\u306e\u64cd\u4f5c\u3092\u3059\u308b\u3068\u304d\u3001\u53d6\u308a\u5f97\u308b\u5024\u3092\u78ba\u7387\u5909\u6570\u3068\u3044\u3044\u307e\u3059\u3002<\/span><\/p>\n<p>\u4f8b\u3048\u3070\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u308b\u3068\u304d\u3001\u53d6\u308a\u5f97\u308b\u5024\u306f1\uff5e6\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u4e00\u3064\u306e\u30b5\u30a4\u30b3\u30ed\u306b\u3064\u3044\u3066\u3001\u78ba\u7387\u5909\u6570\u306f1\uff5e6\u307e\u3067\u306e\u6570\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd3.jpg\" alt=\"\" width=\"260\" height=\"170\" class=\"aligncenter size-full wp-image-5328\" \/><\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u7279\u5b9a\u306e\u78ba\u7387\u5909\u6570\u306b\u306a\u308b\u78ba\u7387\u306f\u3044\u304f\u3089\u3067\u3057\u3087\u3046\u304b\u3002\u30b5\u30a4\u30b3\u30ed\u306e\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u6570\u5b57\u306b\u3064\u3044\u3066\\(\\displaystyle\\frac{1}{6}\\)\u306e\u78ba\u7387\u3067\u8868\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u4ee5\u4e0b\u306e\u8868\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd4.jpg\" alt=\"\" width=\"600\" height=\"136\" class=\"aligncenter size-full wp-image-5330\" \/><\/p>\n<p>\u3053\u306e\u8868\u306b\u3064\u3044\u3066\u3001X\u3092\u78ba\u7387\u5909\u6570\u3068\u3044\u3044\u307e\u3059\u3002\u307e\u305f<span style=\"color: #0000ff;\">X\u306b\u5bfe\u5fdc\u3059\u308b\u78ba\u7387\u3092\u78ba\u7387\u5206\u5e03\u3068\u3044\u3044\u307e\u3059\u3002<\/span>\u305d\u306e\u305f\u3081\u78ba\u7387\u5206\u5e03\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u306f\u3001\u4e0a\u306e\u8868\u3092\u4f5c\u6210\u3059\u308c\u3070\u3044\u3044\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u78ba\u7387\u5206\u5e03\u306e\u8868\u3092\u4f5c\u308b\uff1a\u78ba\u7387\u306e\u7dcf\u548c\u306f\u5fc5\u305a1\u306b\u306a\u308b<\/h3>\n<p>\u5148\u307b\u3069\u306f\u30b5\u30a4\u30b3\u30ed\u3092\u5229\u7528\u3057\u3001\u7c21\u5358\u306a\u78ba\u7387\u5206\u5e03\u306e\u8868\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u305d\u308c\u3067\u306f\u3001\u5c11\u3057\u8907\u96d1\u306a\u5834\u5408\u306e\u78ba\u7387\u5206\u5e03\u306e\u8868\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u4ee5\u4e0b\u306e\u554f\u984c\u3092\u89e3\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>\u76ee\u306e\u6570\u304c\u300c2,2,4,4,5,6\u300d\u306e\u7279\u88fd\u30b5\u30a4\u30b3\u30ed\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u308b\u3068\u304d\u3001\u78ba\u7387\u5206\u5e03\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/li>\n<\/ul>\n<p>\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30b3\u30ed\u3068\u306f\u7570\u306a\u308a\u30011\u30683\u306e\u76ee\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u78ba\u7387\u5909\u6570\u306f2,4,5,6\u306e4\u3064\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u305d\u308c\u305e\u308c\u306e\u78ba\u7387\u5909\u6570\u306b\u5bfe\u3059\u308b\u78ba\u7387\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001\u78ba\u7387\u5206\u5e03\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd7.jpg\" alt=\"\" width=\"449\" height=\"135\" class=\"aligncenter size-full wp-image-5333\" \/><\/p>\n<p>\u7279\u6b8a\u306a\u30b5\u30a4\u30b3\u30ed\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u305f\u3081\u30012\u306e\u76ee\u304c\u51fa\u308b\u78ba\u7387\u306f\\(\\displaystyle\\frac{1}{3}\\)\u3067\u3059\u3002\u307e\u305f4\u306e\u76ee\u304c\u51fa\u308b\u78ba\u7387\u306f\\(\\displaystyle\\frac{1}{3}\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u3088\u3046\u306a\u78ba\u7387\u5206\u5e03\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u91cd\u8981\u306a\u306e\u306f\u3001<span style=\"color: #ff0000;\">\u78ba\u7387\u306e\u7dcf\u548c\u306f\u5fc5\u305a1\uff08100%\uff09\u306b\u306a\u308b\u3053\u3068\u3067\u3059\u3002<\/span>\u8d77\u3053\u308b\u3059\u3079\u3066\u306e\u4e8b\u8c61\u3092\u8db3\u3059\u3068\u3001\u5f53\u7136\u306a\u304c\u30891\u306b\u306a\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u78ba\u7387\u5206\u5e03\u306e\u8868\u3092\u4f5c\u308b\u3068\u304d\u3001\u78ba\u7387P\uff08Probability\uff09\u306e\u5408\u8a08\u304c1\u3067\u306a\u3044\u5834\u5408\u3001\u5fc5\u305a\u9593\u9055\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u78ba\u7387\u5909\u6570\u306e\u671f\u5f85\u5024\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u78ba\u7387\u5909\u6570\u3084\u78ba\u7387\u5206\u5e03\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u6b21\u306b\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u671f\u5f85\u5024\u3068\u3044\u3046\u306e\u306f\u3001\u4e00\u3064\u306e\u64cd\u4f5c\u3092\u3059\u308b\u3068\u304d\u3001\u5f97\u3089\u308c\u308b\u3067\u3042\u308d\u3046\u4e88\u60f3\u5024\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u666e\u901a\u306e\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u308b\u3068\u304d\u3001\u51fa\u308b\u76ee\u306e\u671f\u5f85\u5024\u306f\u3044\u304f\u3089\u3067\u3057\u3087\u3046\u304b\u3002\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u308b\u3068\u30011\u306e\u76ee\u304c\u51fa\u308b\u78ba\u7387\u306f\\(\\displaystyle\\frac{1}{6}\\)\u3067\u3059\u3002\u307e\u305f2\u306e\u76ee\u304c\u51fa\u308b\u78ba\u7387\u306f\\(\\displaystyle\\frac{1}{6}\\)\u3067\u3059\u3002\u540c\u3058\u3088\u3046\u306b\u30011\uff5e6\u307e\u3067\u3059\u3079\u3066\u306e\u5024\u306b\u3064\u3044\u3066\\(\\displaystyle\\frac{1}{6}\\)\u306e\u78ba\u7387\u3067\u51fa\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067<span style=\"color: #0000ff;\">\u78ba\u7387\u5909\u6570\u3068\u78ba\u7387\u3092\u639b\u3051\u5408\u308f\u305b\u305f\u5f8c\u306b\u8db3\u3057\u307e\u3057\u3087\u3046\u3002<\/span>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd6.jpg\" alt=\"\" width=\"600\" height=\"229\" class=\"aligncenter size-full wp-image-5332\" \/><\/p>\n<p>\u3053\u306e\u8a08\u7b97\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u5024\uff083.5\uff09\u304c\u671f\u5f85\u5024\u3067\u3059\u3002\u78ba\u7387\u5909\u6570\u3068\u78ba\u7387\u3092\u304b\u3051\u7b97\u3057\u3001\u8db3\u3059\u3053\u3068\u306b\u3088\u3063\u3066\u671f\u5f85\u5024\u3092\u5f97\u3089\u308c\u307e\u3059\u3002\u671f\u5f85\u5024\u304c3.5\u3067\u3042\u308b\u305f\u3081\u3001\u300c\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u308b\u3068\u304d\u3001\u51fa\u308b\u76ee\u306f3.5\u306b\u306a\u308b\u3068\u671f\u5f85\u3067\u304d\u308b\u300d\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n<p>\u30b5\u30a4\u30b3\u30ed\u306e\u76ee\u306b3.5\u306f\u306a\u3044\u305f\u3081\u3001\u5f53\u7136\u306a\u304c\u3089\u4e00\u56de\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u30663.5\u306b\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u30b5\u30a4\u30b3\u30ed\u306e\u76ee\u304c2\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308c\u3070\u30016\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u4f55\u5ea6\u3082\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u3001\u51fa\u308b\u76ee\u306e\u5e73\u5747\u5024\u3092\u8a08\u7b97\u3059\u308b\u3068\u3001\u5fc5\u305a3.5\u306b\u53ce\u675f\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u671f\u5f85\u5024\u3068\u3044\u3046\u306e\u306f\u3001\u300c\u4e00\u3064\u306e\u64cd\u4f5c\u3092\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u3069\u306e\u3088\u3046\u306a\u7d50\u679c\u3092\u5f97\u3089\u308c\u308b\u306e\u304b\u300d\u306b\u3064\u3044\u3066\u306e\u5e73\u5747\u5024\u3092\u6307\u3057\u307e\u3059\u3002<\/span><\/p>\n<p>\u3082\u3057\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u30663\u3068\u306a\u308b\u5834\u5408\u3001\u671f\u5f85\u3067\u304d\u308b\u5024\u3088\u308a\u3082\u4f4e\u3044\u7d50\u679c\u306b\u306a\u3063\u305f\u3068\u3044\u3048\u307e\u3059\u3002\u307e\u305f\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u30664\u3068\u306a\u308b\u5834\u5408\u3001\u5e73\u5747\u3088\u308a\u3082\u9ad8\u3044\u5024\u3092\u5f97\u305f\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u671f\u5f85\u5024\u3068\u3044\u3046\u306e\u306f\u3001\u300c\u78ba\u7387\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u306e\u7d50\u679c\u306e\u5e73\u5747\u5024\u300d\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u78ba\u7387\u5206\u5e03\u304c\u7570\u306a\u308b\u3068\u671f\u5f85\u5024\u3082\u5909\u5316\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u5148\u307b\u3069\u306e\u300c2,2,4,4,5,6\u300d\u306e\u7279\u88fd\u30b5\u30a4\u30b3\u30ed\u306e\u5834\u5408\u3001\u671f\u5f85\u5024\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u78ba\u7387\u5206\u5e03\u3092\u5229\u7528\u3057\u3066\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd8.jpg\" alt=\"\" width=\"449\" height=\"228\" class=\"aligncenter size-full wp-image-5334\" \/><\/p>\n<p>\u3064\u307e\u308a\u4e00\u56de\u30b5\u30a4\u30b3\u30ed\u3092\u6295\u3052\u3001\u51fa\u3066\u304f\u308b\u5024\u306f\\(\\displaystyle\\frac{23}{6}\\)\u306b\u306a\u308b\u3068\u671f\u5f85\u3067\u304d\u307e\u3059\u3002\u78ba\u7387\u5909\u6570\u306e\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3059\u308b\u3068\u304d\u3001\u3053\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u671f\u5f85\u5024\u306e\u516c\u5f0f\u306e\u610f\u5473\u3092\u7406\u89e3\u3059\u308b<\/h3>\n<p>\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3092\u7406\u89e3\u3059\u308b\u3068\u3001\u671f\u5f85\u5024\u306e\u516c\u5f0f\u306e\u610f\u5473\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u78ba\u7387\u5206\u5e03\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd9.jpg\" alt=\"\" width=\"450\" height=\"207\" class=\"aligncenter size-full wp-image-5335\" \/><\/p>\n<p>\u5148\u307b\u3069\u3068\u540c\u3058\u3088\u3046\u306b\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u3001\u78ba\u7387\u5909\u6570\u3068\u78ba\u7387\u3092\u304b\u3051\u7b97\u3057\u3066\u8db3\u305b\u3070\u3044\u3044\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u671f\u5f85\u5024\\(=X_1P_1+X_2P_2+&#8230;+X_nP_n\\)<\/li>\n<\/ul>\n<p>\u307e\u305f\u3059\u3079\u3066\u3092\u5408\u8a08\u3059\u308b\u3068\u304d\u3001\u6570\u5b66\u3067\u306f\\(\u03c3\\)\u3092\u5229\u7528\u3057\u3066\u8868\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5148\u307b\u3069\u306e\u516c\u5f0f\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u3059\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u671f\u5f85\u5024\\(=\\displaystyle \\sum_{k=1}^n X_kP_k\\)<\/li>\n<\/ul>\n<p>\u305f\u3060\u3001\u3053\u306e\u516c\u5f0f\u3092\u899a\u3048\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u3046\u3067\u306f\u306a\u304f\u3001<span style=\"color: #0000ff;\">\u300c\u671f\u5f85\u5024\u304c\u4f55\u3092\u610f\u5473\u3057\u3066\u3044\u308b\u306e\u304b\u300d\u300c\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308b\u306e\u304b\u300d\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/span>\u305d\u3046\u3059\u308c\u3070\u3001\u516c\u5f0f\u306a\u3057\u306b\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7d71\u8a08\u5b66\u3068\u3044\u3046\u306e\u306f\u3001\u516c\u5f0f\u3092\u898b\u3066\u3082\u7406\u89e3\u3067\u304d\u306a\u3044\u30b1\u30fc\u30b9\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002\u307e\u305f\u5b9f\u969b\u306e\u3068\u3053\u308d\u3001\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u7406\u89e3\u3057\u3001\u516c\u5f0f\u306a\u3057\u306b\u554f\u984c\u3092\u89e3\u3051\u308b\u3088\u3046\u306b\u3059\u308b\u3079\u304d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u671f\u5f85\u5024\u306e\u8a08\u7b97\u3092\u3059\u308b\u3068\u304d\u3001\u516c\u5f0f\u306a\u3057\u306b\u7b54\u3048\u3092\u51fa\u305b\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u671f\u5f85\u5024\u3092\u5229\u7528\u3057\u3001\u6709\u5229\u30fb\u4e0d\u5229\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n<p>\u306a\u304a\u671f\u5f85\u5024\u3092\u7406\u89e3\u3059\u308c\u3070\u3001\u7279\u5b9a\u306e\u30b2\u30fc\u30e0\u306b\u3064\u3044\u3066\u53c2\u52a0\u3059\u308b\u3068\u304d\u306b\u6709\u5229\u306a\u306e\u304b\u3001\u305d\u308c\u3068\u3082\u4e0d\u5229\u306a\u306e\u304b\u5224\u65ad\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\u304a\u5c0f\u9063\u3044\u3092\u3082\u3089\u3046\u3068\u304d\u3001\u6bce\u65e5100\u5186\u3092\u3082\u3089\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u306f\u300c\u30b5\u30a4\u30b3\u30ed\u3092\u6bce\u65e5\u6295\u3052\u30011\u306e\u76ee\u304c\u3067\u308b\u3068500\u5186\u3001\u305d\u306e\u4ed6\u306e\u76ee\u306e\u5834\u5408\u306f60\u5186\u3092\u3082\u3089\u3046\u300d\u3068\u3044\u3046\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3069\u3061\u3089\u304c\u6709\u5229\u3067\u3057\u3087\u3046\u304b\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u304f\u305f\u3081\u3001\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002\u30b5\u30a4\u30b3\u30ed\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u671f\u5f85\u5024\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd12.jpg\" alt=\"\" width=\"350\" height=\"267\" class=\"aligncenter size-full wp-image-5339\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u671f\u5f85\u5024\u306f\\(\\displaystyle\\frac{400}{3}\\)\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u305f\\(\\displaystyle\\frac{400}{3}\\)\u306f100\u3088\u308a\u3082\u6570\u5b57\u304c\u5927\u304d\u3044\u3067\u3059\u3002\u307e\u305f\u6bce\u65e5\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u308b\u3053\u3068\u306b\u306a\u308b\u305f\u3081\u3001\u5f97\u3089\u308c\u308b\u304a\u5c0f\u9063\u3044\u306f\u4e00\u65e5\u3042\u305f\u308a\\(\\displaystyle\\frac{400}{3}\\)\u5186\u306b\u53ce\u675f\u3057\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u6bce\u65e5100\u5186\u3092\u304a\u5c0f\u9063\u3044\u3068\u3057\u3066\u3082\u3089\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u30b5\u30a4\u30b3\u30ed\u3092\u632f\u308b\u307b\u3046\u304c\u6709\u5229\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306b<span style=\"color: #0000ff;\">\u671f\u5f85\u5024\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u6709\u5229\u30fb\u4e0d\u5229\u3092\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p>\u671f\u5f85\u5024\u3068\u3044\u3046\u306e\u306f\u65e5\u5e38\u751f\u6d3b\u306e\u3042\u3089\u3086\u308b\u5834\u9762\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u682a\u5f0f\u6295\u8cc7\u3092\u3059\u308b\u3068\u304d\u3001\u7c73\u56fd\u682a\u3068\u4e2d\u56fd\u682a\u306b\u3064\u3044\u3066\u3001\u3069\u3061\u3089\u306b\u6295\u8cc7\u3092\u3059\u308b\u307b\u3046\u304c\u304a\u91d1\u3092\u5897\u3084\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u7c73\u56fd\u682a\u3068\u4e2d\u56fd\u682a\u306b\u3064\u3044\u3066\u3001\u904e\u53bb\u306e\u682a\u4fa1\u63a8\u79fb\u3092\u6bd4\u8f03\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30fb\u7c73\u56fd\u682a\uff08S&amp;P500\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd14.jpg\" alt=\"\" width=\"600\" height=\"399\" class=\"aligncenter size-full wp-image-5341\" \/><\/p>\n<p><strong>\u30fb\u4e2d\u56fd\u682a\uff08\u4e0a\u6d77\u7dcf\u5408\u6307\u6570\uff09<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd13.jpg\" alt=\"\" width=\"600\" height=\"396\" class=\"aligncenter size-full wp-image-5340\" \/><\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u7c73\u56fd\u682a\uff08S&amp;P500\uff09\u306f\u9577\u671f\u7684\u306b\u305a\u3063\u3068\u4e0a\u6607\u3057\u3066\u304a\u308a\u3001\u6295\u8cc7\u306b\u3088\u3063\u3066\u307b\u307c\u78ba\u5b9f\u306b\u8cc7\u7523\u3092\u5897\u3084\u305b\u308b\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u4e00\u65b9\u3067\u4e2d\u56fd\u682a\uff08\u4e0a\u6d77\u7dcf\u5408\u6307\u6570\uff09\u306f\u682a\u4fa1\u304c\u307b\u307c\u4e0a\u6607\u3057\u3066\u304a\u3089\u305a\u3001\u671f\u5f85\u5024\u304c\u975e\u5e38\u306b\u4f4e\u3044\u3067\u3059\u3002\u8a08\u7b97\u65b9\u6cd5\u306b\u3088\u3063\u3066\u306f\u3001\u4e2d\u56fd\u682a\u3067\u306f\u671f\u5f85\u5024\u304c\u30de\u30a4\u30ca\u30b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b2\u30fc\u30e0\u306b\u4e00\u56de\u53c2\u52a0\u3059\u308b\u3060\u3051\u306e\u5834\u5408\u3001\u5f97\u3092\u3059\u308b\u306e\u304b\u640d\u3092\u3059\u308b\u306e\u304b\u306f\u904b\u3067\u3059\u3002\u305f\u3060<span style=\"color: #0000ff;\">\u4f55\u5ea6\u3082\u30b2\u30fc\u30e0\u306b\u53c2\u52a0\u3059\u308b\u5834\u5408\u3001\u9ad8\u3044\u671f\u5f85\u5024\u3092\u5f97\u3089\u308c\u308b\u30b2\u30fc\u30e0\u306b\u53c2\u52a0\u3059\u308c\u3070\u3001\u5f53\u7136\u306a\u304c\u3089\u8cc7\u7523\u3092\u5897\u3084\u305b\u308b<\/span>\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n<h2>\u78ba\u7387\u5909\u6570\u306e\u671f\u5f85\u5024\u3067\u306e\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u6b21\u306b\u671f\u5f85\u5024\u3092\u5229\u7528\u3057\u3066\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u7d71\u8a08\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u3001\u3070\u3089\u3064\u304d\u3092\u8868\u3059\u306e\u304c\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3067\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306a\u5206\u6563\u306e\u8a08\u7b97\u3067\u306f\u3001\u5e73\u5747\u5024\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30c7\u30fc\u30bf\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>0, 6, -1, 3, 8, 2<\/li>\n<\/ul>\n<p>\u3053\u306e\u30c7\u30fc\u30bf\u306b\u3064\u3044\u3066\u3001\u5e73\u5747\u5024\u306f3\u3067\u3059\u3002\u305d\u3053\u3067\u5e73\u5747\u5024\uff083\uff09\u304b\u3089\u306e\u8ddd\u96e2\u3092\u305d\u308c\u305e\u308c\u8a08\u7b97\u3057\u307e\u3059\u3002\u305f\u3060\u5e73\u5747\u5024\u304b\u3089\u306e\u8ddd\u96e2\u3092\u6e2c\u5b9a\u3059\u308b\u3068\u3001\u6b63\u306e\u5024\u3068\u8ca0\u306e\u5024\u304c\u51fa\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u305d\u3053\u3067\u5e73\u5747\u5024\u304b\u3089\u306e\u8ddd\u96e2\u306b\u3064\u3044\u3066\u4e8c\u4e57\u3057\u3001\u6b63\u306e\u5024\u3092\u5f97\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/gjy14.jpg\" alt=\"\" width=\"500\" height=\"362\" class=\"aligncenter size-full wp-image-4872\" \/><\/p>\n<p><span style=\"color: #0000ff;\">\u300c\u5e73\u5747\u304b\u3089\u306e\u8ddd\u96e2\u3092\u4e8c\u4e57\u3057\u305f\u5024\u300d\u306e\u5e73\u5747\u5024\u304c\u5206\u6563\u3067\u3059\u3002<\/span>\u5e73\u5747\u5024\u3092\u51fa\u3059\u305f\u3081\u3001\u4e8c\u4e57\u3057\u305f\u5024\u3092\u3059\u3079\u3066\u5408\u8a08\u3057\u3001\u500b\u6570\u3067\u5272\u308b\u3053\u3068\u3067\u5206\u6563\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\\(\\displaystyle\\frac{(-3)^2+3^2+(-4)^2+5^2+(-1)^2}{6}=10\\)<\/p>\n<p>\u307e\u305f\u4e8c\u4e57\u3057\u305f\u5024\u304c\u5206\u6563\u3067\u3042\u308b\u305f\u3081\u3001\u5e73\u65b9\u6839\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u4e8c\u4e57\u3092\u53d6\u308a\u53bb\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u5206\u6563\u306b\u5bfe\u3057\u3066\u5e73\u65b9\u6839\u3092\u52a0\u3048\u305f\u3082\u306e\u304c\u6a19\u6e96\u504f\u5dee\u3067\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/gjy11.jpg\" alt=\"\" width=\"404\" height=\"66\" class=\"aligncenter size-full wp-image-4874\" \/><\/p>\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u77e5\u8b58\u3092\u5229\u7528\u3057\u3066\u671f\u5f85\u5024\u306e\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u671f\u5f85\u5024\u306b\u5bfe\u3059\u308b\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee\u3092\u8a08\u7b97\u3059\u308b<\/h3>\n<p>\u671f\u5f85\u5024\u3068\u3044\u3046\u306e\u306f\u3001\u524d\u8ff0\u306e\u901a\u308a\u300c\u78ba\u7387\u3067\u306e\u5e73\u5747\u5024\u300d\u3067\u3059\u3002\u3064\u307e\u308a\u5e73\u5747\u5024\u3068\u3057\u3066\u671f\u5f85\u5024\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u5206\u6563\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u306a\u304a\u671f\u5f85\u5024\u3092\\(E(X)\\)\u3068\u3059\u308b\u3068\u304d\u3001\u5206\u6563\u3092\\(V(X)\\)\u3001\u6a19\u6e96\u504f\u5dee\u3092\\(\u03c3(X)\\)\u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u76ee\u306e\u6570\u304c\u300c2,2,4,4,5,6\u300d\u306e\u7279\u88fd\u30b5\u30a4\u30b3\u30ed\u306b\u3064\u3044\u3066\u3001\u5206\u6563\\(V(X)\\)\u3068\u6a19\u6e96\u504f\u5dee\\(\u03c3(X)\\)\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002\u5148\u307b\u3069\u3001\u3053\u306e\u30b5\u30a4\u30b3\u30ed\u306e\u671f\u5f85\u5024\u306f\\(\\displaystyle\\frac{23}{6}\\)\u3068\u8a08\u7b97\u3057\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u671f\u5f85\u5024\\(E(X)\\)\u3092\u5229\u7528\u3057\u3001\u5206\u6563\\(V(X)\\)\u3068\u6a19\u6e96\u504f\u5dee\\(\u03c3(X)\\)\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u671f\u5f85\u5024\u3092\u5229\u7528\u3057\u3066\u5206\u6563\u3092\u8a08\u7b97\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff08\u8a73\u7d30\u306a\u5206\u6563\u306e\u8a08\u7b97\u65b9\u6cd5\u306f\u8aac\u660e\u3092\u7701\u304d\u307e\u3059\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd19.jpg\" alt=\"\" width=\"600\" height=\"254\" class=\"aligncenter size-full wp-image-5347\" \/><\/p>\n<p>\u306a\u304a\u6a19\u6e96\u504f\u5dee\u306f\u5e73\u65b9\u6839\u3092\u5229\u7528\u3059\u308c\u3070\u3044\u3044\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(\\sqrt{\\displaystyle\\frac{77}{36}}=\\displaystyle\\frac{\\sqrt{77}}{6}\\)<\/p>\n<p>\u671f\u5f85\u5024\u3092\u5229\u7528\u3057\u3066\u3053\u306e\u3088\u3046\u306b\u8a08\u7b97\u3059\u308b\u305f\u3081\u3001\u671f\u5f85\u5024\u3092\\(m\\)\u3068\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u516c\u5f0f\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd16.jpg\" alt=\"\" width=\"599\" height=\"243\" class=\"aligncenter size-full wp-image-5345\" \/><\/p>\n<p>\u3053\u306e\u516c\u5f0f\u306b\u3064\u3044\u3066\u3082\u899a\u3048\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001\u3053\u3053\u307e\u3067\u89e3\u8aac\u3057\u305f\u300c\u671f\u5f85\u5024\u306e\u5206\u6563\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u300d\u3092\u7406\u89e3\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u516c\u5f0f\u3092\u5909\u5f62\u3057\u3001\u5206\u6563\u3092\u51fa\u3059\u305f\u3081\u306e\u65b0\u305f\u306a\u516c\u5f0f\u3092\u5f97\u308b<\/h3>\n<p>\u3061\u306a\u307f\u306b\u3001\u5148\u307b\u3069\u306e\u516c\u5f0f\u3092\u5909\u5f62\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u4ee5\u4e0b\u306e\u516c\u5f0f\u3092\u5c0e\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/jfwj3.jpg\" alt=\"\" width=\"500\" height=\"458\" class=\"aligncenter size-full wp-image-6181\" \/><\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u5206\u6563\u3092\u5f97\u308b\u4ee5\u4e0b\u306e\u516c\u5f0f\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>\\(V(X)=E(X^2)-E(X)^2\\)<\/li>\n<\/ul>\n<p>\u3053\u306e\u516c\u5f0f\u3092\u5229\u7528\u3057\u3066\u5206\u6563\u306e\u8a08\u7b97\u3092\u3057\u305f\u3044\u5834\u5408\u3001\u516c\u5f0f\u3092\u899a\u3048\u306a\u3051\u308c\u3070\u3044\u3051\u307e\u305b\u3093\u3002\u516c\u5f0f\u3092\u5229\u7528\u3057\u306a\u304f\u3066\u3082\u5148\u307b\u3069\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3088\u3063\u3066\u5206\u6563\u3092\u51fa\u3059\u3053\u3068\u306f\u3067\u304d\u308b\u3082\u306e\u306e\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3067\u306f\u306a\u304f\u3042\u306a\u305f\u304c\u8a08\u7b97\u3059\u308b\u5834\u5408\u3001\u3053\u306e\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3068\u8a08\u7b97\u306f\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u516c\u5f0f\u306f\u4f55\u3092\u610f\u5473\u3057\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\\(E(X^2)\\)\u3068\u3044\u3046\u306e\u306f\u3001\u300c\\(X^2\\)\u306e\u671f\u5f85\u5024\u300d\u3092\u8868\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001<span style=\"color: #ff0000;\">\\(X^2\\)\u3092\u5229\u7528\u3057\u3066\u300c\\(X^2\\)\u306e\u671f\u5f85\u5024\u300d\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n<p>\u307e\u305f\\({E(X)}^2=m^2\\)\u3067\u3042\u308a\u3001\u8981\u306f\u671f\u5f85\u5024\u3092\u4e8c\u4e57\u3057\u305f\u5024\u3092\u6307\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u76ee\u306e\u6570\u304c\u300c2,2,4,4,5,6\u300d\u306e\u7279\u88fd\u30b5\u30a4\u30b3\u30ed\u306b\u3064\u3044\u3066\u3001\u671f\u5f85\u5024\\(\\displaystyle\\frac{23}{6}\\)\u3092\u5229\u7528\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5206\u6563\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/sfyd20.jpg\" alt=\"\" width=\"599\" height=\"235\" class=\"aligncenter size-full wp-image-5348\" \/><\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u5148\u307b\u3069\u8a08\u7b97\u3057\u305f\u5206\u6563\\(V(X)\\)\u3068\u540c\u3058\u5024\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u5206\u6563\u304c\u540c\u3058\u3067\u3042\u308b\u305f\u3081\u3001\u6a19\u6e96\u504f\u5dee\\(\u03c3(X)\\)\u3082\u540c\u3058\u3067\u3059\u3002<\/p>\n<p><span style=\"color: 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