{"id":70746,"date":"2025-06-28T17:07:22","date_gmt":"2025-06-28T08:07:22","guid":{"rendered":"https:\/\/adtechmanagement.com\/minnadepr-column\/?p=70746"},"modified":"2025-06-28T17:07:36","modified_gmt":"2025-06-28T08:07:36","slug":"what-is-variance","status":"publish","type":"post","link":"https:\/\/adtechmanagement.com\/minnadepr-column\/2025\/06\/28\/what-is-variance\/","title":{"rendered":"\u5206\u6563\u3068\u306f\uff1f\u610f\u5473\u3068\u5177\u4f53\u4f8b\u304b\u3089\u5b66\u3076\u65e5\u5e38\u3084\u30d3\u30b8\u30cd\u30b9\u3067\u306e\u91cd\u8981\u306a\u6982\u5ff5"},"content":{"rendered":"

\u5206\u6563\u3068\u306f\u300c\u3070\u3089\u3064\u304d\u300d\u3084\u300c\u5e83\u304c\u308a\u300d\u3092\u8868\u3059\u8a00\u8449\u3067\u3001\u7d71\u8a08\u5b66\u30fb\u30d3\u30b8\u30cd\u30b9\u30fb\u6559\u80b2\u30fb\u65e5\u5e38\u751f\u6d3b\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u5206\u6563\u306e\u57fa\u672c\u7684\u306a\u610f\u5473\u304b\u3089\u3001\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3001\u5206\u6563\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u8003\u3048\u65b9\u307e\u3067\u3001\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n

1. \u5206\u6563\u3068\u306f\u4f55\u304b<\/h2>\n

1-1. \u5206\u6563\u306e\u57fa\u672c\u7684\u306a\u610f\u5473<\/h3>\n

\u5206\u6563\u3068\u306f\u3001\u8907\u6570\u306e\u6570\u5024\u3084\u30c7\u30fc\u30bf\u304c\u5e73\u5747\u5024\uff08\u5e73\u5747\uff09\u304b\u3089\u3069\u308c\u3060\u3051\u96e2\u308c\u3066\u3044\u308b\u304b\u3092\u793a\u3059\u6307\u6a19\u3067\u3059\u3002\u3070\u3089\u3064\u304d\u3084\u6563\u3089\u3070\u308a\u306e\u7a0b\u5ea6\u3092\u6570\u5024\u5316\u3057\u305f\u3082\u306e\u3067\u3001\u7d71\u8a08\u5206\u6790\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u306e\u4e00\u3064\u3067\u3059\u3002 <\/p>\n

1-2. \u6570\u5b66\u7684\u306a\u5b9a\u7fa9<\/h3>\n

\u6570\u5b66\u7684\u306b\u306f\u3001\u300c\u5404\u30c7\u30fc\u30bf\u3068\u5e73\u5747\u306e\u5dee\u30922\u4e57\u3057\u3066\u3001\u305d\u308c\u3092\u5e73\u5747\u3057\u305f\u3082\u306e\u300d\u304c\u5206\u6563\u3067\u3059\u3002\u8a18\u53f7\u3067\u306f\u300cVar(X)\u300d\u3068\u8868\u3055\u308c\u3001\u5358\u4f4d\u306f\u5143\u306e\u30c7\u30fc\u30bf\u306e\u5358\u4f4d\u306e2\u4e57\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n

2. \u5206\u6563\u3068\u95a2\u9023\u3059\u308b\u7528\u8a9e<\/h2>\n

2-1. \u6a19\u6e96\u504f\u5dee\u3068\u306e\u9055\u3044<\/h3>\n

\u5206\u6563\u306f\u5e73\u5747\u304b\u3089\u306e\u305a\u308c\u306e2\u4e57\u306e\u5e73\u5747\u3067\u3059\u304c\u3001\u6a19\u6e96\u504f\u5dee\u306f\u305d\u306e\u5e73\u65b9\u6839\u3067\u3059\u3002\u6a19\u6e96\u504f\u5dee\u306f\u5143\u306e\u30c7\u30fc\u30bf\u3068\u540c\u3058\u5358\u4f4d\u306b\u306a\u308b\u305f\u3081\u3001\u5b9f\u7528\u7684\u306b\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u5206\u6563\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u3068\u6a19\u6e96\u504f\u5dee\u3082\u6b63\u3057\u304f\u6271\u3048\u307e\u305b\u3093\u3002 <\/p>\n

2-2. \u5206\u5e03\u3068\u306e\u95a2\u4fc2<\/h3>\n

\u30c7\u30fc\u30bf\u306e\u300c\u5206\u5e03\u300d\u306f\u3001\u5024\u304c\u3069\u306e\u3088\u3046\u306b\u6563\u3089\u3070\u3063\u3066\u3044\u308b\u304b\u306e\u5168\u4f53\u50cf\u3092\u793a\u3059\u3082\u306e\u3067\u3059\u3002\u5206\u6563\u306f\u305d\u306e\u5e83\u304c\u308a\u3092\u6570\u5024\u3067\u628a\u63e1\u3059\u308b\u624b\u6bb5\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002 <\/p>\n

3. \u5206\u6563\u306e\u5177\u4f53\u4f8b<\/h2>\n

3-1. \u6210\u7e3e\u306e\u3070\u3089\u3064\u304d<\/h3>\n

\u4f8b\u3048\u3070\u3001\u3042\u308b\u30af\u30e9\u30b9\u306e\u30c6\u30b9\u30c8\u7d50\u679c\u304c\u5168\u54e190\u70b9\u3067\u3042\u308c\u3070\u5206\u6563\u306f\u30bc\u30ed\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u65b9\u300160\u70b9\u301c100\u70b9\u307e\u3067\u5e45\u5e83\u304f\u70b9\u6570\u304c\u5206\u304b\u308c\u3066\u3044\u308c\u3070\u3001\u5206\u6563\u306f\u5927\u304d\u304f\u306a\u308a\u3001\u6210\u7e3e\u306e\u3070\u3089\u3064\u304d\u304c\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 <\/p>\n

3-2. \u6295\u8cc7\u306b\u304a\u3051\u308b\u5206\u6563<\/h3>\n

\u682a\u5f0f\u6295\u8cc7\u3084\u8cc7\u7523\u904b\u7528\u306e\u4e16\u754c\u3067\u3082\u300c\u5206\u6563\u300d\u306f\u91cd\u8981\u3067\u3059\u3002\u30ea\u30b9\u30af\u3092\u4e00\u7b87\u6240\u306b\u96c6\u4e2d\u3055\u305b\u305a\u3001\u7570\u306a\u308b\u8cc7\u7523\u306b\u5206\u3051\u3066\u6295\u8cc7\u3059\u308b\u3053\u3068\u3092\u300c\u30ea\u30b9\u30af\u5206\u6563\u300d\u3068\u547c\u3073\u307e\u3059\u3002\u3053\u308c\u306f\u91d1\u878d\u5546\u54c1\u9593\u306e\u5024\u52d5\u304d\u306e\u3070\u3089\u3064\u304d\u3092\u5229\u7528\u3057\u3066\u5b89\u5b9a\u6027\u3092\u56f3\u308b\u65b9\u6cd5\u3067\u3059\u3002 <\/p>\n

3-3. \u88fd\u54c1\u306e\u54c1\u8cea\u7ba1\u7406<\/h3>\n

\u5de5\u5834\u3067\u88fd\u9020\u3055\u308c\u308b\u88fd\u54c1\u306e\u30b5\u30a4\u30ba\u3084\u91cd\u3055\u306b\u3070\u3089\u3064\u304d\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u306e\u5206\u6563\u3092\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u54c1\u8cea\u304c\u4e00\u5b9a\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3067\u304d\u307e\u3059\u3002 <\/p>\n

4. \u5206\u6563\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n

4-1. \u624b\u9806\u306e\u6982\u8981<\/h3>\n

1. \u5404\u30c7\u30fc\u30bf\u306e\u5e73\u5747\u3092\u6c42\u3081\u308b 2. \u5404\u30c7\u30fc\u30bf\u304b\u3089\u5e73\u5747\u3092\u5f15\u304f 3. \u305d\u308c\u305e\u308c\u306e\u5dee\u30922\u4e57\u3059\u308b 4. \u3059\u3079\u3066\u306e2\u4e57\u5dee\u3092\u8db3\u3057\u5408\u308f\u305b\u308b 5. \u30c7\u30fc\u30bf\u306e\u500b\u6570\u3067\u5272\u308b\uff08\u307e\u305f\u306f\u81ea\u7531\u5ea6\u3067\u5272\u308b\uff09 <\/p>\n

4-2. \u6bcd\u5206\u6563\u3068\u6a19\u672c\u5206\u6563<\/h3>\n

\u6bcd\u5206\u6563\u306f\u300c\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\uff08\u6bcd\u96c6\u56e3\uff09\u300d\u306b\u57fa\u3065\u304f\u5206\u6563\u3067\u3001\u6a19\u672c\u5206\u6563\u306f\u300c\u4e00\u90e8\u306e\u30c7\u30fc\u30bf\uff08\u6a19\u672c\uff09\u300d\u304b\u3089\u63a8\u6e2c\u3059\u308b\u969b\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u6a19\u672c\u5206\u6563\u3067\u306f\u5206\u6bcd\u3092\u300cn-1\u300d\u306b\u3059\u308b\u70b9\u304c\u7279\u5fb4\u3067\u3059\u3002 <\/p>\n

5. \u5206\u6563\u3092\u7406\u89e3\u3059\u308b\u610f\u5473<\/h2>\n

5-1. \u30c7\u30fc\u30bf\u306e\u7279\u5fb4\u3092\u53ef\u8996\u5316\u3067\u304d\u308b<\/h3>\n

\u5e73\u5747\u3060\u3051\u3092\u898b\u3066\u3044\u3066\u306f\u308f\u304b\u3089\u306a\u3044\u3001\u30c7\u30fc\u30bf\u306e\u3070\u3089\u3064\u304d\u3092\u6570\u5024\u3068\u3057\u3066\u8868\u73fe\u3067\u304d\u308b\u305f\u3081\u3001\u3088\u308a\u8a73\u7d30\u306a\u5206\u6790\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n

5-2. \u5224\u65ad\u30df\u30b9\u3092\u6e1b\u3089\u305b\u308b<\/h3>\n

\u3070\u3089\u3064\u304d\u306e\u6fc0\u3057\u3044\u30c7\u30fc\u30bf\u3067\u306f\u3001\u5e73\u5747\u5024\u3060\u3051\u3067\u5224\u65ad\u3059\u308b\u3068\u8aa4\u89e3\u3092\u62db\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5206\u6563\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u4fe1\u983c\u3067\u304d\u308b\u5224\u65ad\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002 <\/p>\n

5-3. \u6559\u80b2\u3084\u8a55\u4fa1\u306e\u516c\u5e73\u6027\u306b\u6d3b\u7528\u3067\u304d\u308b<\/h3>\n

\u5206\u6563\u306e\u4f4e\u3044\u8a55\u4fa1\u5236\u5ea6\u306f\u3001\u516c\u5e73\u6027\u304c\u9ad8\u3044\u3068\u3055\u308c\u307e\u3059\u3002\u9006\u306b\u5206\u6563\u304c\u5927\u304d\u3044\u5834\u5408\u306f\u3001\u57fa\u6e96\u306e\u3042\u3044\u307e\u3044\u3055\u3084\u63a1\u70b9\u306e\u3070\u3089\u3064\u304d\u304c\u7591\u308f\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002 <\/p>\n

6. \u5206\u6563\u304c\u6d3b\u7528\u3055\u308c\u308b\u5834\u9762<\/h2>\n

6-1. \u30d3\u30b8\u30cd\u30b9\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u5206\u6790<\/h3>\n

\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u3084\u9867\u5ba2\u5206\u6790\u306a\u3069\u3067\u3001\u6d88\u8cbb\u8005\u306e\u884c\u52d5\u306e\u3070\u3089\u3064\u304d\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306b\u5206\u6563\u304c\u6d3b\u7528\u3055\u308c\u307e\u3059\u3002\u9867\u5ba2\u306e\u884c\u52d5\u3084\u58f2\u4e0a\u306e\u3070\u3089\u3064\u304d\u3092\u77e5\u308b\u3053\u3068\u3067\u3001\u6539\u5584\u65bd\u7b56\u304c\u7acb\u3066\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002 <\/p>\n

6-2. \u533b\u7642\u3084\u5fc3\u7406\u5b66\u3067\u306e\u7814\u7a76<\/h3>\n

\u6cbb\u7642\u52b9\u679c\u306e\u3070\u3089\u3064\u304d\u3084\u3001\u5fc3\u306e\u72b6\u614b\u306e\u9055\u3044\u3092\u6570\u5024\u3067\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u3082\u5206\u6563\u306f\u4f7f\u308f\u308c\u307e\u3059\u3002\u7d71\u8a08\u7684\u306b\u6709\u610f\u306a\u5dee\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306b\u3082\u91cd\u8981\u3067\u3059\u3002 <\/p>\n

6-3. \u30b9\u30dd\u30fc\u30c4\u306e\u6210\u7e3e\u7ba1\u7406<\/h3>\n

\u9078\u624b\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5b89\u5b9a\u6027\u3092\u898b\u308b\u305f\u3081\u306b\u5206\u6563\u3092\u4f7f\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6210\u7e3e\u304c\u6bce\u56de\u5b89\u5b9a\u3057\u3066\u3044\u308c\u3070\u5206\u6563\u306f\u5c0f\u3055\u304f\u3001\u4e0d\u5b89\u5b9a\u3067\u3042\u308c\u3070\u5206\u6563\u306f\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002 <\/p>\n

7. \u5206\u6563\u306e\u6ce8\u610f\u70b9<\/h2>\n

7-1. \u5358\u4f4d\u306b\u6ce8\u610f\u3059\u308b<\/h3>\n

\u5206\u6563\u306e\u5358\u4f4d\u306f\u5143\u30c7\u30fc\u30bf\u306e2\u4e57\u306b\u306a\u308b\u305f\u3081\u3001\u610f\u5473\u3092\u628a\u63e1\u3057\u3065\u3089\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6bd4\u8f03\u306b\u306f\u6a19\u6e96\u504f\u5dee\u3092\u4f7f\u3046\u3053\u3068\u3082\u691c\u8a0e\u3059\u308b\u3079\u304d\u3067\u3059\u3002 <\/p>\n

7-2. \u5916\u308c\u5024\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u3044<\/h3>\n

\u6975\u7aef\u306a\u6570\u5024\uff08\u5916\u308c\u5024\uff09\u304c\u3042\u308b\u3068\u3001\u5206\u6563\u306f\u5927\u304d\u304f\u5909\u5316\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306e\u5206\u5e03\u5168\u4f53\u3092\u898b\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002 <\/p>\n

7-3. \u5c0f\u3055\u3044\u5206\u6563\u304c\u5fc5\u305a\u3057\u3082\u826f\u3044\u3068\u306f\u9650\u3089\u306a\u3044<\/h3>\n

\u5206\u6563\u304c\u5c0f\u3055\u3044\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u3070\u3089\u3064\u304d\u304c\u5c11\u306a\u3044\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u304c\u3001\u305d\u308c\u304c\u5275\u9020\u6027\u3084\u591a\u69d8\u6027\u3092\u5931\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002 <\/p>\n

8. \u307e\u3068\u3081\uff1a\u5206\u6563\u306f\u5e83\u304c\u308a\u3092\u6570\u5024\u3067\u6349\u3048\u308b\u9375<\/h2>\n

\u5206\u6563\u3068\u306f\u3001\u5e73\u5747\u304b\u3089\u306e\u8ddd\u96e2\u30922\u4e57\u3057\u3066\u5e73\u5747\u3057\u305f\u6570\u5024\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u306e\u3070\u3089\u3064\u304d\u3084\u5e83\u304c\u308a\u3092\u628a\u63e1\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u6307\u6a19\u3067\u3059\u3002\u7d71\u8a08\u3060\u3051\u3067\u306a\u304f\u3001\u6559\u80b2\u3001\u30d3\u30b8\u30cd\u30b9\u3001\u65e5\u5e38\u751f\u6d3b\u307e\u3067\u5e45\u5e83\u304f\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5206\u6563\u3092\u6b63\u3057\u304f\u7406\u89e3\u3057\u3001\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u3088\u308a\u6b63\u78ba\u3067\u6df1\u3044\u5206\u6790\u3084\u5224\u65ad\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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