{"id":793068,"date":"2023-05-08T11:00:00","date_gmt":"2023-05-08T18:00:00","guid":{"rendered":"https:\/\/www.questionpro.com\/blog\/%e7%9b%b8%e9%96%a2%e3%83%9e%e3%83%88%e3%83%aa%e3%83%83%e3%82%af%e3%82%b9%ef%bc%9a%e3%83%9e%e3%83%88%e3%83%aa%e3%82%af%e3%82%b9%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%81%e3%81%a9%e3%81%ae%e3%82%88\/"},"modified":"2023-05-19T18:14:08","modified_gmt":"2023-05-19T18:14:08","slug":"%e7%9b%b8%e9%96%a2%e3%83%9e%e3%83%88%e3%83%aa%e3%83%83%e3%82%af%e3%82%b9%ef%bc%9a%e3%83%9e%e3%83%88%e3%83%aa%e3%82%af%e3%82%b9%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%81%e3%81%a9%e3%81%ae%e3%82%88","status":"publish","type":"post","link":"https:\/\/www.questionpro.com\/blog\/ja\/%e7%9b%b8%e9%96%a2%e3%83%9e%e3%83%88%e3%83%aa%e3%83%83%e3%82%af%e3%82%b9%ef%bc%9a%e3%83%9e%e3%83%88%e3%83%aa%e3%82%af%e3%82%b9%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%81%e3%81%a9%e3%81%ae%e3%82%88\/","title":{"rendered":"\u76f8\u95a2\u30de\u30c8\u30ea\u30c3\u30af\u30b9\uff1a\u30de\u30c8\u30ea\u30af\u30b9\u3068\u306f\u4f55\u304b\u3001\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u306e\u304b\u3001\u4f8b\u3092\u6319\u3052\u3066\u8aac\u660e\u3059\u308b\u3002"},"content":{"rendered":"\n

\u76f8\u95a2\u884c\u5217\u3068\u306f\u30012\u3064\u4ee5\u4e0a\u306e\u5909\u6570\u304c\u3069\u306e\u7a0b\u5ea6\u306e\u5f37\u3055\u3067\u3001\u3069\u306e\u3088\u3046\u306a\u65b9\u5411\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3059\u7d71\u8a08\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3002 \u91d1\u878d\u3001\u7d4c\u6e08\u3001\u5fc3\u7406\u3001\u751f\u7269\u306a\u3069\u306e\u5206\u91ce\u3067\u591a\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u7570\u306a\u308b\u3082\u306e\u304c\u4e92\u3044\u306b\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u304b\u3089\u3067\u3059\u3002<\/p>\n\n

\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u610f\u601d\u6c7a\u5b9a\u3092\u884c\u3046\u306b\u306f\u3001\u76f8\u95a2\u884c\u5217\u306e\u8aad\u307f\u65b9\u3084\u4f7f\u3044\u65b9\u3092\u77e5\u3063\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u5909\u6570\u3092\u884c\u3068\u5217\u3067\u8868\u793a\u3057\u307e\u3059\u3002 \u76f8\u95a2\u4fc2\u6570\u306f\u3001\u8868\u306e\u5404\u30bb\u30eb\u306b\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002 <\/p>\n\n

\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001\u76f8\u95a2\u884c\u5217\u306e\u4ed5\u7d44\u307f\u3092\u7d39\u4ecb\u3057\u3001\u3044\u304f\u3064\u304b\u306e\u4f8b\u3092\u6319\u3052\u3066\u3001\u30c7\u30fc\u30bf\u5206\u6790\u306b\u3069\u306e\u3088\u3046\u306b\u4f7f\u3046\u304b\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n\n

\u76f8\u95a2\u884c\u5217\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n\n

\u76f8\u95a2\u884c\u5217\u306f\u3001\u7570\u306a\u308b\u5909\u6570\u306e\u76f8\u95a2\u4fc2\u6570\u3092\u8868\u306b\u3057\u305f\u3082\u306e\u3067\u3042\u308b\u3002 \u884c\u5217\u306f\u3001\u8868\u306e\u4e2d\u3067\u53ef\u80fd\u306a\u3059\u3079\u3066\u306e\u5024\u306e\u7d44\u304c\u3001\u4e92\u3044\u306b\u3069\u306e\u3088\u3046\u306b\u95a2\u9023\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3059\u3002 \u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u8981\u7d04\u3057\u3001\u30c7\u30fc\u30bf\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u898b\u3064\u3051\u3066\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n

\u8868\u3068\u3057\u3066\u793a\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u884c\u3068\u5217\u306e\u4e21\u65b9\u306b\u5404\u5909\u6570\u304c\u8a18\u8f09\u3055\u308c\u3001\u5404\u30bb\u30eb\u306e\u4e2d\u306b\u5404\u5909\u6570\u306e\u30da\u30a2\u9593\u306e\u76f8\u95a2\u4fc2\u6570\u304c\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u308b\u3002 \u76f8\u95a2\u4fc2\u6570\u306f-1\uff5e+1\u306e\u7bc4\u56f2\u3067\u3001-1\u306f\u5b8c\u5168\u306a\u8ca0\u306e\u76f8\u95a2\u3001+1\u306f\u5b8c\u5168\u306a\u6b63\u306e\u76f8\u95a2\u30010\u306f\u5909\u6570\u9593\u306b\u76f8\u95a2\u304c\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n\n

\u307e\u305f\u3001\u4ed6\u306e\u7a2e\u985e\u306e\u7d71\u8a08\u89e3\u6790\u3068\u4f75\u7528\u3055\u308c\u308b\u3053\u3068\u3082\u591a\u3044\u3002<\/p>\n\n

\u4f8b\u3048\u3070\u3001\u91cd\u56de\u5e30\u3092\u5229\u7528\u3057\u305f\u30e2\u30c7\u30eb\u306e\u5206\u6790\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/em><\/p>\n\n

\u30e2\u30c7\u30eb\u306b\u306f\u3001\u81ea\u5206\u3067\u5909\u3048\u3089\u308c\u308b\u5909\u6570\u304c\u3044\u304f\u3064\u304b\u3042\u308b\u3053\u3068\u3092\u5fd8\u308c\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002 \u91cd\u56de\u5e30\u3067\u306f\u3001\u76f8\u95a2\u884c\u5217\u306b\u3088\u3063\u3066\u3001\u30e2\u30c7\u30eb\u5185\u306e\u72ec\u7acb\u5909\u6570\u304c\u4e92\u3044\u306b\u3069\u306e\u7a0b\u5ea6\u5f37\u304f\u95a2\u4fc2\u3057\u3066\u3044\u308b\u304b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n

\u76f8\u95a2\u884c\u5217\u306f\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u306e\u3067\u3059\u304b\uff1f<\/h2>\n\n

\u76f8\u95a2\u884c\u5217\u306f\u30012\u3064\u306e\u5909\u6570\u306e\u9593\u306e\u7dda\u5f62\u95a2\u4fc2\u3092\u8a08\u7b97\u3059\u308b\u3002 \u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306f\u3001\u5404\u5909\u6570\u306e\u30da\u30a2\u306b\u3064\u3044\u3066\u76f8\u95a2\u4fc2\u6570\u3092\u8a08\u7b97\u3057\u3001\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306e\u8a72\u5f53\u30bb\u30eb\u306b\u633f\u5165\u3059\u308b\u3053\u3068\u3067\u69cb\u7bc9\u3055\u308c\u308b\u3002<\/p>\n\n

2\u3064\u306e\u5909\u6570\u9593\u306e\u76f8\u95a2\u4fc2\u6570\u306f\u3001\u4ee5\u4e0b\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n\n

r = (n\u03a3XY – \u03a3X\u03a3Y) \/ sqrt((n\u03a3X^2 – (\u03a3X)^2)(n\u03a3Y^2 – (\u03a3Y)^2))<\/p>\n\n

\u306e\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n\n

r = \u76f8\u95a2\u4fc2\u6570<\/p>\n\n

n = \u89b3\u5bdf\u6570<\/p>\n\n

\u03a3XY\uff1d2\u3064\u306e\u5909\u6570\u306e\u5bfe\u5fdc\u3059\u308b\u89b3\u6e2c\u5024\u306e\u5404\u7d44\u306e\u7a4d\u306e\u548c<\/p>\n\n

\u03a3X\uff1d\u7b2c1\u5909\u6570\u306e\u89b3\u6e2c\u5024\u306e\u7dcf\u548c<\/p>\n\n

\u03a3Y\uff1d\u7b2c2\u5909\u6570\u306e\u89b3\u6e2c\u5024\u306e\u7dcf\u548c<\/p>\n\n

\u03a3X^2 = \u7b2c1\u5909\u6570\u306e\u89b3\u6e2c\u5024\u306e\u4e8c\u4e57\u306e\u7dcf\u548c<\/p>\n\n

\u03a3Y^2 = \u7b2c2\u306e\u5909\u6570\u306e\u89b3\u6e2c\u5024\u306e\u4e8c\u4e57\u306e\u548c<\/p>\n\n

\u305d\u306e\u7d50\u679c\u3001\u76f8\u95a2\u4fc2\u6570\u306f-1\uff5e+1\u306e\u9593\u3067\u5909\u5316\u3057\u3001-1\u306f\u5b8c\u5168\u306a\u8ca0\u306e\u76f8\u95a2\u3001+1\u306f\u5b8c\u5168\u306a\u6b63\u306e\u76f8\u95a2\u30010\u306f\u5909\u6570\u9593\u306b\u76f8\u95a2\u304c\u306a\u3044\u3053\u3068\u3092\u8868\u3059\u3002<\/p>\n\n