{"id":40788,"date":"2024-11-04T12:20:30","date_gmt":"2024-11-04T12:20:30","guid":{"rendered":"https:\/\/atmokpo.com\/w\/?p=40788"},"modified":"2024-11-26T06:38:27","modified_gmt":"2024-11-26T06:38:27","slug":"15-z-%ec%a0%90%ec%88%98z-score%ec%99%80-%ed%91%9c%ec%a4%80%ed%99%94standardization-%ed%91%9c%ec%a4%80%ed%99%94%ec%9d%98-%ea%b0%9c%eb%85%90%ea%b3%bc-z-%ec%a0%90%ec%88%98%ec%9d%98-%ec%97%ad","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/40788\/","title":{"rendered":"15.Z-\uc810\uc218(Z-Score)\uc640 \ud45c\uc900\ud654(Standardization), \ud45c\uc900\ud654\uc758 \uac1c\ub150\uacfc Z-\uc810\uc218\uc758 \uc5ed\ud560"},"content":{"rendered":"<p>\n    \ud1b5\uacc4\ud559\uc5d0\uc11c \ub370\uc774\ud130\uc758 \ubd84\uc11d \ubc0f \ud574\uc11d\uc744 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ub418\ub294 \uae30\ubc95 \uc911 \ud558\ub098\ub294 \ubc14\ub85c <strong>Z-\uc810\uc218<\/strong>\uc640 <strong>\ud45c\uc900\ud654<\/strong>\uc785\ub2c8\ub2e4.<br \/>\n    Z-\uc810\uc218\ub294 \ub370\uc774\ud130\uc758 \uc0c1\ub300\uc801 \uc704\uce58\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc8fc\uba70, \ud45c\uc900\ud654\ub294 \uc11c\ub85c \ub2e4\ub978 \ub2e8\uc704\ub97c \uac16\ub294 \ub370\uc774\ud130 \uc9d1\ud569 \uac04\uc758 \ube44\uad50\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<br \/>\n    \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 Z-\uc810\uc218\uc640 \ud45c\uc900\ud654\uc758 \uac1c\ub150, \uc774\ub4e4\uc774 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0\uc11c \uac16\ub294 \uc911\uc694\uc131, \uadf8\ub9ac\uace0 \uc5ec\ub7ec \uc2e4\uc81c \uc608\uc81c\ub97c \ud1b5\ud574 \uc774\ub860\uc744 \ud655\uc7a5\ud574\ubcf4\uace0\uc790 \ud569\ub2c8\ub2e4.\n<\/p>\n<h2>1. \ud45c\uc900\ud654\uc758 \uac1c\ub150<\/h2>\n<p>\n<strong>\ud45c\uc900\ud654<\/strong>\ub780 \uc11c\ub85c \ub2e4\ub978 \ud2b9\uc131\uc744 \uac00\uc9c4 \ub370\uc774\ud130 \uc9d1\ud569\uc744 \ube44\uad50 \uac00\ub2a5\ud558\uac8c \ub9cc\ub4e4\uae30 \uc704\ud574<br \/>\n    \ub370\uc774\ud130\ub97c \ud1b5\uc77c\ub41c \ucc99\ub3c4\ub85c \ubcc0\ud658\ud558\ub294 \uacfc\uc815\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n    \uc77c\ubc18\uc801\uc73c\ub85c \ub370\uc774\ud130\ub294 \ud3c9\uade0\uac12\uacfc \ud45c\uc900\ud3b8\ucc28\ub97c \uae30\uc900\uc73c\ub85c \ubcc0\ud658\ub418\uba70, \uc774\ub97c \ud1b5\ud574 \ubc1c\uc0dd\ud558\ub294 \uc0c8\ub85c\uc6b4 \ub370\uc774\ud130\ub294 \ub3d9\uc77c\ud55c \ubd84\ud3ec\ub97c \uac16\uac8c \ub429\ub2c8\ub2e4.<br \/>\n    \ud45c\uc900\ud654\ub97c \uc801\uc6a9\ud558\ub294 \uc774\uc720\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:\n<\/p>\n<ul>\n<li>\uc11c\ub85c \ub2e4\ub978 \ub2e8\uc704\ub97c \uac00\uc9c4 \ub370\uc774\ud130\uc758 \ube44\uad50 \uac00\ub2a5\uc131 \uc81c\uacf5<\/li>\n<li>\ub370\uc774\ud130\uc758 \ubd84\ud3ec\ub97c \uc548\uc815\ud654 \uc2dc\ud0b4<\/li>\n<li>\uadf9\ub2e8\uac12(outlier)\uc758 \uc601\ud5a5 \uac10\uc18c<\/li>\n<li>\uc11c\ub85c \ub2e4\ub978 \ub370\uc774\ud130 \uc138\ud2b8\ub97c \ud558\ub098\uc758 \uae30\uc900\uc73c\ub85c \ud1b5\ud569 \uac00\ub2a5<\/li>\n<\/ul>\n<h2>2. Z-\uc810\uc218\ub780?<\/h2>\n<p>\n<strong>Z-\uc810\uc218<\/strong>\ub294 \uc8fc\uc5b4\uc9c4 \uac12\uc774 \ud3c9\uade0\uc73c\ub85c\ubd80\ud130 \uc5bc\ub9c8\ub098 \ub5a8\uc5b4\uc838 \uc788\ub294\uc9c0\ub97c \ub098\ud0c0\ub0b4\ub294 \ud45c\uc900\ud654\ub41c \uc810\uc218\uc785\ub2c8\ub2e4.<br \/>\n    Z-\uc810\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4:\n<\/p>\n<pre><code>Z = (X - \u03bc) \/ \u03c3<\/code><\/pre>\n<p>\n    \uc5ec\uae30\uc11c, <\/p>\n<ul>\n<li><strong>X<\/strong>\ub294 \uacc4\uc0b0\ud558\uace0\uc790 \ud558\ub294 \uac1c\ubcc4 \ub370\uc774\ud130 \uac12<\/li>\n<li><strong>\u03bc<\/strong>\ub294 \ub370\uc774\ud130 \uc9d1\ud569\uc758 \ud3c9\uade0<\/li>\n<li><strong>\u03c3<\/strong>\ub294 \ub370\uc774\ud130 \uc9d1\ud569\uc758 \ud45c\uc900\ud3b8\ucc28<\/li>\n<\/ul>\n<p>    Z-\uc810\uc218\ub294 \ud2b9\uc815 \uac12\uc774 \ud3c9\uade0\uc5d0\uc11c \uba87 \ud45c\uc900\ud3b8\ucc28 \ub5a8\uc5b4\uc838 \uc788\ub294\uc9c0\ub97c \uc218\uce58\uc801\uc73c\ub85c \ub098\ud0c0\ub0b4\uba70, \uc774\ub294 \ub370\uc774\ud130\uc758 \uc704\uce58\ub97c \uba85\ud655\ud558\uac8c \ud574\uc90d\ub2c8\ub2e4.\n<\/p>\n<h2>3. Z-\uc810\uc218\uc758 \uc5ed\ud560<\/h2>\n<p>\n    Z-\uc810\uc218\ub294 \ud1b5\uacc4\ud559\uc758 \uc5ec\ub7ec \uc601\uc5ed\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uadf8 \uc8fc\ub41c \uc5ed\ud560\uc744 \uc0b4\ud3b4\ubcf4\uba74 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:\n<\/p>\n<ul>\n<li><strong>\ube44\uad50 \uac00\ub2a5\uc131:<\/strong> Z-\uc810\uc218\ub294 \uc11c\ub85c \ub2e4\ub978 \ubd84\ud3ec\ub97c \uac00\uc9c0\ub294 \ub370\uc774\ud130 \uac04\uc758 \uc9c1\uc811\uc801\uc778 \ube44\uad50\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc815\uaddc\uc131 \uac80\uc815:<\/strong> Z-\uc810\uc218\ub294 \ub370\uc774\ud130\uac00 \uc815\uaddc\ubd84\ud3ec\ub97c \ub530\ub974\ub294\uc9c0\ub97c \ubd84\uc11d\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud655\ub960 \uacc4\uc0b0:<\/strong> Z-\uc810\uc218\ub97c \ud1b5\ud574 \ud2b9\uc815 \uac12\uc774 \uc804\uccb4 \uc9d1\ud569\uc5d0 \ube44\ud574 \uc5bc\ub9c8\ub098 \ud754\ud55c\uc9c0 \ub610\ub294 \ub4dc\ubb38\uc9c0\ub97c \ud30c\uc545\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uc774\uc0c1\uce58(outlier) \uac80\ucd9c:<\/strong> Z-\uc810\uc218\uac00 \uc77c\uc815 \uc784\uacc4\uac12\uc744 \ub118\uc5b4\uc124 \uacbd\uc6b0, \ud574\ub2f9 \uac12\uc740 \uc774\uc0c1\uce58\ub85c \ud310\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>4. Z-\uc810\uc218\uc758 \ud574\uc11d<\/h2>\n<p>\n    Z-\uc810\uc218\uc758 \ud574\uc11d\uc740 \uadf8 \uac12\uc73c\ub85c\ubd80\ud130 \uc5bc\ub9c8\ub098 \ub5a8\uc5b4\uc838 \uc788\ub294\uc9c0\ub97c \uc774\ud574\ud558\ub294 \ub370 \uc788\uc2b5\ub2c8\ub2e4. Z-\uc810\uc218\uac00 0\uc774\uba74 \ub370\uc774\ud130 \uac12\uc774 \ud3c9\uade0\uacfc \uac19\ub2e4\ub294 \uc758\ubbf8\uc774\uba70,<br \/>\n    Z-\uc810\uc218\uac00 \uc591\uc218\uc774\uba74 \ud3c9\uade0\ubcf4\ub2e4 \ud06c\uace0, \uc74c\uc218\uc774\uba74 \ud3c9\uade0\ubcf4\ub2e4 \uc791\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. Z-\uc810\uc218\uac00 \ub2e4\uc74c\uacfc \uac19\uc774 \ud574\uc11d\ub429\ub2c8\ub2e4:\n<\/p>\n<ul>\n<li><strong>Z = 1.0:<\/strong> \ud3c9\uade0\ubcf4\ub2e4 1 \ud45c\uc900\ud3b8\ucc28 \ub192\uc74c<\/li>\n<li><strong>Z = -1.0:<\/strong> \ud3c9\uade0\ubcf4\ub2e4 1 \ud45c\uc900\ud3b8\ucc28 \ub0ae\uc74c<\/li>\n<li><strong>Z = 2.0:<\/strong> \ud3c9\uade0\ubcf4\ub2e4 2 \ud45c\uc900\ud3b8\ucc28 \ub192\uc74c<\/li>\n<li><strong>Z = -2.0:<\/strong> \ud3c9\uade0\ubcf4\ub2e4 2 \ud45c\uc900\ud3b8\ucc28 \ub0ae\uc74c<\/li>\n<\/ul>\n<h2>5. Z-\uc810\uc218 \uad6c\ud558\uae30 \uc608\uc81c<\/h2>\n<p>\n    \uc608\ub97c \ub4e4\uc5b4, \ud55c \ud074\ub798\uc2a4\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\uac00 70\uc810, \ud45c\uc900\ud3b8\ucc28\uac00 10\uc810\uc774\ub77c\uace0 \uac00\uc815\ud569\uc2dc\ub2e4.<br \/>\n    \ub9cc\uc57d \ud55c \ud559\uc0dd\uc758 \uc2dc\ud5d8 \uc810\uc218\uac00 85\uc810\uc774\ub77c\uace0 \ud560 \ub54c, \uc774 \ud559\uc0dd\uc758 Z-\uc810\uc218\ub97c \uacc4\uc0b0\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4:\n<\/p>\n<pre><code>X = 85, \u03bc = 70, \u03c3 = 10\nZ = (X - \u03bc) \/ \u03c3\nZ = (85 - 70) \/ 10 = 1.5<\/code><\/pre>\n<p>\n    \uc774 \ud559\uc0dd\uc758 Z-\uc810\uc218\ub294 1.5\ub85c, \ud3c9\uade0\ubcf4\ub2e4 1.5 \ud45c\uc900\ud3b8\ucc28 \ub192\uc740 \uc810\uc218\ub97c \uae30\ub85d\ud55c \uac83\uc785\ub2c8\ub2e4.\n<\/p>\n<h2>6. Z-\uc810\uc218\uc758 \ubd84\ud3ec\uc640 \ud655\ub960<\/h2>\n<p>\n    Z-\uc810\uc218\ub294 \uc815\uaddc \ubd84\ud3ec(\ud45c\uc900 \uc815\uaddc \ubd84\ud3ec)\uc5d0\uc11c \ud2b9\uc815 \uac12\uc758 \ud655\ub960\uc744 \uacc4\uc0b0\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<br \/>\n    \ud45c\uc900 \uc815\uaddc \ubd84\ud3ec\ub294 \ud3c9\uade0\uc774 0\uc774\uace0 \ud45c\uc900\ud3b8\ucc28\uac00 1\uc778 \uc815\uaddc\ubd84\ud3ec\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<br \/>\n    Z-\uc810\uc218\ub97c \uc0ac\uc6a9\ud558\uba74 \ud2b9\uc815 \uac12\ubcf4\ub2e4 \uc791\uac70\ub098 \ud070 \uac12\uc774 \ubc1c\uc0dd\ud560 \ud655\ub960\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n<\/p>\n<h2>7. \ud45c\uc900\ud654\uc758 \uc911\uc694\uc131<\/h2>\n<p>\n    \ud45c\uc900\ud654\ub294 \uc5ec\ub7ec \uc0b0\uc5c5 \ubc0f \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud569\ub2c8\ub2e4.<br \/>\n    \uc608\ub97c \ub4e4\uc5b4, \uc2ec\ub9ac\ud559\uc5d0\uc11c\ub294 \ub2e4\uc591\ud55c \ud14c\uc2a4\ud2b8\uc758 \uc810\uc218\ub97c \ube44\uad50\ud558\uac70\ub098,<br \/>\n    \uc758\ub8cc \ubd84\uc57c\uc5d0\uc11c\ub294 \ud658\uc790\uc758 \uc0dd\uccb4 \uc9c0\ud45c\ub97c \uc11c\ub85c \ube44\uad50\ud558\ub294 \ub370 \ud45c\uc900\ud654\uac00 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<br \/>\n    \uc774\ub7ec\ud55c \ubc29\ubc95\ub860\uc740 \ub370\uc774\ud130\uc758 \ud574\uc11d\uc744 \uc6a9\uc774\ud558\uac8c \ud558\uba70, \ub370\uc774\ud130 \uae30\ubc18 \uc758\uc0ac\uacb0\uc815\uc758 \ud488\uc9c8\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub370 \uae30\uc5ec\ud569\ub2c8\ub2e4.\n<\/p>\n<h2>8. \uacb0\ub860<\/h2>\n<p>\n<strong>Z-\uc810\uc218<\/strong>\uc640 <strong>\ud45c\uc900\ud654<\/strong>\ub294 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0\uc11c \ube60\uc9c8 \uc218 \uc5c6\ub294 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<br \/>\n    Z-\uc810\uc218\ub294 \ub370\uc774\ud130\uc758 \uac1c\ubcc4 \uac12\uc744 \ubcf4\ub2e4 \uba85\ud655\ud558\uac8c \uc774\ud574\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc8fc\uba70,<br \/>\n    \ud45c\uc900\ud654\ub97c \ud1b5\ud574 \uc11c\ub85c \ub2e4\ub978 \ub370\uc774\ud130 \uc9d1\ud569\uc744 \ubcf4\ub2e4 \ub098\uc740 \ud615\ud0dc\ub85c \ube44\uad50\ud558\uace0 \ubd84\uc11d\ud560 \uc218 \uc788\uac8c \ub9cc\ub4ed\ub2c8\ub2e4.<br \/>\n    \uc774\ub7ec\ud55c \ub3c4\uad6c\ub4e4\uc744 \ud1b5\ud574 \ud1b5\uacc4\ud559\uc801 \ud574\uc11d\uc744 \ub354 \uba85\ud655\ud788 \ud558\uace0, \uc2e4\uc9c8\uc801\uc778 \ubd84\uc11d \uacb0\uacfc\ub97c \ub3c4\ucd9c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n    \uc55e\uc73c\ub85c \ub370\uc774\ud130 \ubd84\uc11d\uc5d0 \uc788\uc5b4 Z-\uc810\uc218\uc640 \ud45c\uc900\ud654\ub97c \uc78a\uc9c0 \uc54a\ub3c4\ub85d \ud558\uc2ed\uc2dc\uc624.\n<\/p>\n<p>\uc704 \ub0b4\uc6a9\uc744 \ubc14\ud0d5\uc73c\ub85c \ud1b5\uacc4 \ubd84\uc11d \ubc0f \ub370\uc774\ud130 \uacfc\ud559 \ubd84\uc57c\uc5d0\uc11c \ud544\uc694\ud55c \uc2ec\uce35\uc801\uc778 \uc774\ud574\ub97c \ubc14\ud0d5\uc73c\ub85c<br \/>\nZ-\uc810\uc218\uc640 \ud45c\uc900\ud654\uc5d0 \ub300\ud55c \uc2e4\uc9c8\uc801\uc778 \uc9c0\uc2dd\uc774 \uc313\uc774\uae30\ub97c \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud1b5\uacc4\ud559\uc5d0\uc11c \ub370\uc774\ud130\uc758 \ubd84\uc11d \ubc0f \ud574\uc11d\uc744 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ub418\ub294 \uae30\ubc95 \uc911 \ud558\ub098\ub294 \ubc14\ub85c Z-\uc810\uc218\uc640 \ud45c\uc900\ud654\uc785\ub2c8\ub2e4. Z-\uc810\uc218\ub294 \ub370\uc774\ud130\uc758 \uc0c1\ub300\uc801 \uc704\uce58\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc8fc\uba70, \ud45c\uc900\ud654\ub294 \uc11c\ub85c \ub2e4\ub978 \ub2e8\uc704\ub97c \uac16\ub294 \ub370\uc774\ud130 \uc9d1\ud569 \uac04\uc758 \ube44\uad50\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4. \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 Z-\uc810\uc218\uc640 \ud45c\uc900\ud654\uc758 \uac1c\ub150, \uc774\ub4e4\uc774 \ub370\uc774\ud130 \ubd84\uc11d\uc5d0\uc11c \uac16\ub294 \uc911\uc694\uc131, \uadf8\ub9ac\uace0 \uc5ec\ub7ec \uc2e4\uc81c \uc608\uc81c\ub97c \ud1b5\ud574 \uc774\ub860\uc744 \ud655\uc7a5\ud574\ubcf4\uace0\uc790 \ud569\ub2c8\ub2e4. 1. \ud45c\uc900\ud654\uc758 \uac1c\ub150 \ud45c\uc900\ud654\ub780 &hellip; <a href=\"https:\/\/atmokpo.com\/w\/40788\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;15.Z-\uc810\uc218(Z-Score)\uc640 \ud45c\uc900\ud654(Standardization), \ud45c\uc900\ud654\uc758 \uac1c\ub150\uacfc Z-\uc810\uc218\uc758 \uc5ed\ud560&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[219],"tags":[],"class_list":["post-40788","post","type-post","status-publish","format-standard","hentry","category-219"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>15.Z-\uc810\uc218(Z-Score)\uc640 \ud45c\uc900\ud654(Standardization), \ud45c\uc900\ud654\uc758 \uac1c\ub150\uacfc Z-\uc810\uc218\uc758 \uc5ed\ud560 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/40788\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"15.Z-\uc810\uc218(Z-Score)\uc640 \ud45c\uc900\ud654(Standardization), \ud45c\uc900\ud654\uc758 \uac1c\ub150\uacfc Z-\uc810\uc218\uc758 \uc5ed\ud560 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"\ud1b5\uacc4\ud559\uc5d0\uc11c \ub370\uc774\ud130\uc758 \ubd84\uc11d \ubc0f \ud574\uc11d\uc744 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ub418\ub294 \uae30\ubc95 \uc911 \ud558\ub098\ub294 \ubc14\ub85c Z-\uc810\uc218\uc640 \ud45c\uc900\ud654\uc785\ub2c8\ub2e4. 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