{"id":493,"date":"2023-07-29T17:26:06","date_gmt":"2023-07-29T17:26:06","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%86%e1%85%ae%e1%86%af%e1%84%80%e1%85%a9%e1%84%80%e1%85%b5-%e1%84%92%e1%85%ac%e1%84%80%e1%85%b1\/"},"modified":"2023-07-29T17:26:06","modified_gmt":"2023-07-29T17:26:06","slug":"%e1%84%86%e1%85%ae%e1%86%af%e1%84%80%e1%85%a9%e1%84%80%e1%85%b5-%e1%84%92%e1%85%ac%e1%84%80%e1%85%b1","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%86%e1%85%ae%e1%86%af%e1%84%80%e1%85%a9%e1%84%80%e1%85%b5-%e1%84%92%e1%85%ac%e1%84%80%e1%85%b1\/","title":{"rendered":"\uac1c\uc218 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \ud3ec\uc544\uc1a1 \ud68c\uadc0\uc5d0 \ub300\ud55c \uac04\ub2e8\ud55c \uc18c\uac1c"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>\ud68c\uadc0\ub294<\/strong> \ud558\ub098 \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uc640 <a href=\"https:\/\/statorials.org\/ko\/\u1107\u1167\u11ab\u1109\u116e-\u1109\u1165\u11af\u1106\u1167\u11bc-\u110b\u1173\u11bc\u1103\u1161\u11b8\/\" target=\"_blank\" rel=\"noopener\">\ubc18\uc751 \ubcc0\uc218<\/a> \uc0ac\uc774\uc758 \uad00\uacc4\ub97c \ud655\uc778\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ud1b5\uacc4 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\ud3ec\uc544\uc1a1 \ud68c\uadc0\ub294<\/strong> \uc751\ub2f5 \ubcc0\uc218\uac00 &#8220;\uac1c\uc218 \ub370\uc774\ud130&#8221;\uc778 \ud2b9\uc218\ud55c \uc720\ud615\uc758 \ud68c\uadc0\uc785\ub2c8\ub2e4. \ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uc0ac\ub840\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc608 1:<\/strong> \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud558\uba74 \ud504\ub85c\uadf8\ub7a8 \uc785\ud559 \uc2dc GPA\uc640 \uc131\ubcc4\uc744 \uae30\uc900\uc73c\ub85c \ud2b9\uc815 \ub300\ud559 \ud504\ub85c\uadf8\ub7a8\uc744 \uc878\uc5c5\ud558\ub294 \ud559\uc0dd \uc218\ub97c \uc870\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 &#8220;\uc878\uc5c5\ud558\ub294 \ud559\uc0dd \uc218&#8221;\ub294 \ubc18\uc751 \ubcc0\uc218\uc774\uace0, &#8220;\ud504\ub85c\uadf8\ub7a8 \uc785\ud559 \uc2dc GPA&#8221;\ub294 \uc5f0\uc18d\ud615 \uc608\uce21 \ubcc0\uc218\uc774\uace0, &#8220;\uc131\ubcc4&#8221;\uc740 \ubc94\uc8fc\ud615 \uc608\uce21 \ubcc0\uc218\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc608 2:<\/strong> \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud558\uba74 \uae30\uc0c1 \uc870\uac74(&#8220;\ub9d1\uc74c&#8221;, &#8220;\ud750\ub9bc&#8221;, &#8220;\ube44&#8221;)\uc744 \uae30\ubc18\uc73c\ub85c \ud2b9\uc815 \uad50\ucc28\ub85c\uc5d0\uc11c \uad50\ud1b5 \uc0ac\uace0 \uac74\uc218\uc640 \ub3c4\uc2dc\uc5d0\uc11c \ud2b9\ubcc4 \uc774\ubca4\ud2b8\uac00 \ubc1c\uc0dd\ud558\ub294\uc9c0 \uc5ec\ubd80(&#8220;\uc608&#8221;)\ub97c \uc870\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub2c8\uba74 \uc544\ub2c8\uc624\u201d). \uc774 \uacbd\uc6b0 &#8220;\uad50\ud1b5\uc0ac\uace0 \uac74\uc218&#8221;\ub294 \ubc18\uc751 \ubcc0\uc218\uc778 \ubc18\uba74 &#8220;\uae30\uc0c1 \uc0c1\ud669&#8221;\uacfc &#8220;\ud2b9\uc218 \uc0ac\uac74&#8221;\uc740 \ubaa8\ub450 \ubc94\uc8fc\ud615 \uc608\uce21 \ubcc0\uc218\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc608 3:<\/strong> \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud558\uba74 \uc2dc\uac04, \uc694\uc77c, \ud310\ub9e4 \uc9c4\ud589 \uc5ec\ubd80(&#8220;\uc608 \ub610\ub294 \uc544\ub2c8\uc694)\ub97c \uae30\uc900\uc73c\ub85c \ub9e4\uc7a5\uc5d0\uc11c \uc904\uc744 \uc11c \uc788\ub294 \uc0ac\ub78c\uc758 \uc218\ub97c \uc870\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. .&#8221;). \uc774 \uacbd\uc6b0 &#8220;\uc55e\uc5d0 \uc904\uc744 \uc11c \uc788\ub294 \uc0ac\ub78c\uc758 \uc218&#8221;\ub294 \ubc18\uc751\ubcc0\uc218\uc774\uace0, &#8220;\uc2dc\uac04&#8221;\uacfc &#8220;\uc694\uc77c&#8221;\uc740 \ubaa8\ub450 \uc5f0\uc18d\ud615 \uc608\uce21\ubcc0\uc218\uc774\uba70, &#8220;\ud310\ub9e4 \uc9c4\ud589 \uc911&#8221;\uc740 \ubc94\uc8fc\ud615 \uc608\uce21\ubcc0\uc218\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc608 4:<\/strong> \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud558\uc5ec \uae30\uc0c1 \uc870\uac74(&#8220;\ub9d1\uc74c&#8221;, &#8220;\ud750\ub9bc&#8221;, &#8220;\ube44&#8221;) \ubc0f \ucf54\uc2a4 \ub09c\uc774\ub3c4(&#8220;\uc26c\uc6c0&#8221;, &#8220;\ube44&#8221;)\ub97c \uae30\ubc18\uc73c\ub85c \ucca0\uc778 3\uc885 \uacbd\uae30\ub97c \uc644\uc8fc\ud558\ub294 \uc0ac\ub78c\uc758 \uc218\ub97c \uc870\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf4\ud1b5&#8217;, &#8216;\uc5b4\ub824\uc6c0&#8217;). \uc774 \uacbd\uc6b0 &#8220;\uc644\ub8cc\ud55c \uc0ac\ub78c \uc218&#8221;\ub294 \ubc18\uc751 \ubcc0\uc218\uc778 \ubc18\uba74 &#8220;\ub0a0\uc528 \uc870\uac74&#8221;\uacfc &#8220;\ucf54\uc2a4 \ub09c\uc774\ub3c4&#8221;\ub294 \ubaa8\ub450 \ubc94\uc8fc\ud615 \uc608\uce21 \ubcc0\uc218\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc218\ud589\ud558\uba74 \uc5b4\ub5a4 \uc608\uce21 \ubcc0\uc218(\uc788\ub294 \uacbd\uc6b0)\uac00 \ubc18\uc751 \ubcc0\uc218\uc5d0 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ubbf8\ud55c \uc601\ud5a5\uc744 \ubbf8\uce58\ub294\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc5f0\uc18d\ud615 \uc608\uce21 \ubcc0\uc218\uc758 \uacbd\uc6b0 \ud574\ub2f9 \ubcc0\uc218\uc758 1\ub2e8\uc704 \uc99d\uac00 \ub610\ub294 \uac10\uc18c\uac00 \ubc18\uc751 \ubcc0\uc218 \uc22b\uc790\uc758 \ubc31\ubd84\uc728 \ubcc0\ud654\uc640 \uc5b4\ub5bb\uac8c \uc5f0\uad00\ub418\uc5b4 \uc788\ub294\uc9c0 \ud574\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4(\uc608: &#8220;GPA\uc758 \uac01 1\ub2e8\uc704 \uc99d\uac00 \ucd94\uac00 \ud3ec\uc778\ud2b8\ub294 \ubc18\uc751 \ubcc0\uc218\uac00 12.5% \uc99d\uac00\ud568).<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ubc94\uc8fc\ud615 \uc608\uce21 \ubcc0\uc218\uc758 \uacbd\uc6b0 \ud55c \uadf8\ub8f9\uc758 \uac1c\uc218(\uc608: \ud654\ucc3d\ud55c \ub0a0 \ucca0\uc778 3\uc885 \uacbd\uae30\ub97c \uc644\uc8fc\ud55c \uc0ac\ub78c \uc218)\uc758 \ubc31\ubd84\uc728 \ubcc0\ud654\ub97c \ub2e4\ub978 \uadf8\ub8f9(\uc608: \ucca0\uc778 3\uc885 \uacbd\uae30\ub97c \uc644\uc8fc\ud55c \uc0ac\ub78c \uc218)\uacfc \ube44\uad50\ud558\uc5ec \ud574\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6b0\ucc9c \uc2dc \ucca0\uc778 3\uc885 \uacbd\uae30).<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>\ud3ec\uc544\uc1a1 \ud68c\uadc0\uc758 \uac00\uc815<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">\ud3ec\uc544\uc1a1 \ud68c\uadc0\ub97c \uc218\ud589\ud558\ub824\uba74 \uba3c\uc800 \ud3ec\uc544\uc1a1 \ud68c\uadc0 \uacb0\uacfc\uac00 \uc720\ud6a8\ud558\ub3c4\ub85d \ub2e4\uc74c \uac00\uc815\uc774 \ucda9\uc871\ub418\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uac00\uc815 1:<\/strong> <strong>\uc751\ub2f5 \ubcc0\uc218\ub294 \uce74\uc6b4\ud2b8 \ub370\uc774\ud130\uc785\ub2c8\ub2e4.<\/strong> \uc804\ud1b5\uc801\uc778 \uc120\ud615 \ud68c\uadc0 \ubd84\uc11d\uc5d0\uc11c \ubc18\uc751 \ubcc0\uc218\ub294 \uc5f0\uc18d \ub370\uc774\ud130\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ud3ec\uc544\uc1a1 \ud68c\uadc0\ub97c \uc0ac\uc6a9\ud558\ub824\uba74 \uc751\ub2f5 \ubcc0\uc218\uac00 0 \uc774\uc0c1\uc758 \uc815\uc218(\uc608: 0, 1, 2, 14, 34, 49, 200 \ub4f1)\ub97c \ud3ec\ud568\ud558\ub294 \uac1c\uc218 \ub370\uc774\ud130\ub85c \uad6c\uc131\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc751\ub2f5 \ubcc0\uc218\uc5d0\ub294 \uc74c\uc218 \uac12\uc774 \ud3ec\ud568\ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uac00\uc124 2: \uad00\uce21\uce58\ub294 \ub3c5\ub9bd\uc801\uc785\ub2c8\ub2e4.<\/strong> \ub370\uc774\ud130\uc138\ud2b8\uc758 \uac01 <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1169\u11bc\u1100\u1168\u110b\u1166\u1109\u1165\u110b\u1174-\u1100\u116a\u11ab\u110e\u1161\u11af\/\" target=\"_blank\" rel=\"noopener\">\uad00\uce21\uac12\uc740<\/a> \uc11c\ub85c \ub3c5\ub9bd\uc801\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc774\ub294 \ud558\ub098\uc758 \uad00\ucc30\uc774 \ub2e4\ub978 \uad00\ucc30\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud560 \uc218 \uc5c6\uc5b4\uc57c \ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uac00\uc124 3: \uacc4\uc815 \ubd84\ud3ec\ub294 \ud3ec\uc544\uc1a1 \ubd84\ud3ec\ub97c \ub530\ub985\ub2c8\ub2e4.<\/strong> \uacb0\uacfc\uc801\uc73c\ub85c \uad00\ucc30\ub41c \uac1c\uc218\uc640 \uae30\ub300\ub418\ub294 \uac1c\uc218\ub294 \uc720\uc0ac\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \ud14c\uc2a4\ud2b8\ud558\ub294 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \uc608\uc0c1 \uac1c\uc218\uc640 \uad00\ucc30 \uac1c\uc218\ub97c \ud45c\uc2dc\ud558\uace0 \uc720\uc0ac\ud55c\uc9c0 \ud655\uc778\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uac00\uc815 4: \ubaa8\ub378\uc758 \ud3c9\uade0\uacfc \ubd84\uc0b0\uc774 \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/strong> \uc774\ub294 \uac1c\uc218 \ubd84\ud3ec\uac00 \ud3ec\uc544\uc1a1 \ubd84\ud3ec\ub97c \ub530\ub978\ub2e4\ub294 \uac00\uc815\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4. \ud3ec\uc544\uc1a1 \ubd84\ud3ec\uc758 \uacbd\uc6b0 \ubd84\uc0b0\uc740 \ud3c9\uade0\uacfc \ub3d9\uc77c\ud55c \uac12\uc744 \uac16\uc2b5\ub2c8\ub2e4. \uc774 \uac00\uc815\uc774 \ucda9\uc871\ub418\uba74 <strong>\ub4f1\ubd84\uc0b0\uc774<\/strong> \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uacfc\ubd84\uc0b0\uc774 \uc77c\ubc18\uc801\uc778 \ubb38\uc81c\uc774\uae30 \ub54c\ubb38\uc5d0 \uc774 \uac00\uc815\uc740 \uc885\uc885 \uc704\ubc18\ub429\ub2c8\ub2e4.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>\uc608: R\uc758 \ud3ec\uc544\uc1a1 \ud68c\uadc0<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">\uc774\uc81c R\uc5d0\uc11c \ud3ec\uc544\uc1a1 \ud68c\uadc0\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc758 \uc608\ub97c \uac80\ud1a0\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\ubc30\uacbd<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ud2b9\uc815 \uce74\uc6b4\ud2f0\uc758 \uace0\ub4f1\ud559\uad50 \uc57c\uad6c \uc120\uc218\uac00 \uadf8\uc758 \ud559\uad50 \ubd80\ubb38(&#8220;A&#8221;, &#8220;B&#8221; \ub610\ub294 &#8220;C&#8221;)\uacfc \ud559\uad50 \uc131\uc801\uc744 \uae30\uc900\uc73c\ub85c \uc5bc\ub9c8\ub098 \ub9ce\uc740 \uc7a5\ud559\uae08\uc744 \ubc1b\ub294\uc9c0 \uc54c\uace0 \uc2f6\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub300\ud559 \uc785\ud559 \uc2dc\ud5d8(0\uc5d0\uc11c 100\uae4c\uc9c0 \uce21\uc815). ).<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 100\uba85\uc758 \uc57c\uad6c \uc120\uc218\uc5d0 \ub300\ud55c \ub370\uc774\ud130\uac00 \ud3ec\ud568\ub41c \ub370\uc774\ud130 \uc138\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(1)\n\n<span style=\"color: #008080;\">#create dataset\n<\/span>data &lt;- data.frame(offers = c(rep(0, 50), rep(1, 30), rep(2, 10), rep(3, 7), rep(4, 3)),\n                   division = sample(c(\"A\", \"B\", \"C\"), 100, replace = TRUE),\n                   exam = c(runif(50, 60, 80), runif(30, 65, 95), runif(20, 75, 95)))<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>\ub370\uc774\ud130 \uc774\ud574<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubaa8\ub378\uc744 \uc774 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc2e4\uc81c\ub85c \uc801\uc6a9\ud558\uae30 \uc804\uc5d0 \ub370\uc774\ud130 \uc138\ud2b8\uc758 \ucc98\uc74c \uba87 \ud589\uc744 \uc2dc\uac01\ud654\ud558\uace0 <strong><a href=\"https:\/\/dplyr.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">dplyr<\/a><\/strong> \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc694\uc57d \ud1b5\uacc4\ub97c \uc2e4\ud589\ud568\uc73c\ub85c\uc368 \ub370\uc774\ud130\ub97c \ub354 \uc798 \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view dimensions of dataset<\/span>\ndim(data)\n\n#[1] 100 3\n\n<span style=\"color: #008080;\">#view first six lines of dataset<\/span>\nhead(data)\n\n# offers division exam\n#1 0 A 73.09448\n#2 0 B 67.06395\n#3 0 B 65.40520\n#4 0 C 79.85368\n#5 0 A 72.66987\n#6 0 C 64.26416\n\n<span style=\"color: #008080;\">#view summary of each variable in dataset<\/span>\nsummary(data)\n\n# offers division exam      \n# Min. :0.00 To:27 Min. :60.26  \n# 1st Qu.:0.00 B:38 1st Qu.:69.86  \n# Median: 0.50 C:35 Median: 75.08  \n# Mean:0.83 Mean:76.43  \n# 3rd Qu.:1.00 3rd Qu.:82.87  \n# Max. :4.00 Max. :93.87  \n\n<span style=\"color: #008080;\">#view mean exam score by number of offers<\/span>\nlibrary(dplyr)\ndata %&gt;%\n  <span style=\"color: #800080;\">group_by<\/span> (offers) %&gt;%\n  <span style=\"color: #800080;\">summarize<\/span> (mean_exam = mean(exam))\n\n# A tibble: 5 x 2\n# offers mean_exam\n#        \n#1 0 70.0\n#2 1 80.8\n#3 2 86.8\n#4 3 83.9\n#5 4 87.9<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uc704\uc758 \uacb0\uacfc\ub85c\ubd80\ud130 \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc0ac\uc2e4\uc744 \uad00\ucc30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\ub370\uc774\ud130 \uc138\ud2b8\uc5d0\ub294 100\uac1c\uc758 \ud589\uacfc 3\uac1c\uc758 \uc5f4\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\ud50c\ub808\uc774\uc5b4\uac00 \ubc1b\uc740 \ucd5c\uc18c \uc81c\uc548 \uc218\ub294 0\uac1c, \ucd5c\ub300 \uc81c\uc548 \uc218\ub294 4\uac1c, \ud3c9\uade0\uc740 0.83\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc774 \ub370\uc774\ud130 \uc138\ud2b8\uc5d0\ub294 &#8220;A&#8221; \ub514\ube44\uc804\uc758 \ud50c\ub808\uc774\uc5b4 27\uba85, &#8220;B&#8221; \ub514\ube44\uc804\uc758 \ud50c\ub808\uc774\uc5b4 38\uba85, &#8220;C&#8221; \ub514\ube44\uc804\uc758 \ud50c\ub808\uc774\uc5b4 35\uba85\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc2dc\ud5d8\ucd5c\uc18c\uc810\uc218\ub294 60.26\uc810, \ucd5c\uace0\uc810\uc218\ub294 93.87\uc810, \ud3c9\uade0\uc810\uc218\ub294 76.43\uc810\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc77c\ubc18\uc801\uc73c\ub85c \uc7a5\ud559\uae08 \uc81c\uc548\uc744 \ub354 \ub9ce\uc774 \ubc1b\uc740 \ud50c\ub808\uc774\uc5b4\ub294 \uc2dc\ud5d8 \uc810\uc218\uac00 \ub354 \ub192\uc740 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4(\uc608\ub97c \ub4e4\uc5b4 \uc81c\uc548\uc744 \ubc1b\uc9c0 \uc54a\uc740 \ud50c\ub808\uc774\uc5b4\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\ub294 70.0\uc774\uc5c8\uace0 4\uac1c\uc758 \uc81c\uc548\uc744 \ubc1b\uc740 \ud50c\ub808\uc774\uc5b4\uc758 \ud3c9\uade0 \uac80\ud1a0 \uc810\uc218\ub294 87.9\uc600\uc2b5\ub2c8\ub2e4).<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ub610\ud55c \ub514\ube44\uc804\uc5d0 \ub530\ub77c \ud50c\ub808\uc774\uc5b4\uac00 \ubc1b\uc740 \uc81c\uc548 \uc218\ub97c \uc2dc\uac01\ud654\ud558\ub294 \ud788\uc2a4\ud1a0\uadf8\ub7a8\uc744 \ub9cc\ub4e4 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load <em>ggplot2<\/em> package<\/span>\nlibrary(ggplot2)\n\n<span style=\"color: #008080;\">#create histogram\n<\/span>ggplot(data, aes(offers, fill = division)) +\n  geom_histogram(binwidth=.5, position=\"dodge\")<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\ub300\ubd80\ubd84\uc758 \ud50c\ub808\uc774\uc5b4\uac00 \uc81c\uc548\uc744 \uc804\ud600 \ubc1b\uc9c0 \uc54a\uac70\ub098 \ub2e8 \ud55c \ubc88\ub9cc \ubc1b\uc740 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 <a href=\"https:\/\/statorials.org\/ko\/\u1106\u116e\u11af\u1100\u1169\u1100\u1175\u110b\u1174-\u110b\u1172\u1110\u1169\u11bc\/\" target=\"_blank\" rel=\"noopener\">\ud3ec\uc544\uc1a1 \ubd84\ud3ec\ub97c<\/a> \ub530\ub974\ub294 \ub370\uc774\ud130 \uc138\ud2b8\uc758 \uc804\ud615\uc801\uc778 \ud604\uc0c1\uc785\ub2c8\ub2e4. \uc751\ub2f5 \uac12\uc758 \uc0c1\ub2f9 \ubd80\ubd84\uc774 0\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubaa8\ub378 \ud53c\ud305<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c\uc73c\ub85c <strong>glm()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uace0 \ubaa8\ub378\uc5d0 <strong>family=&#8221;fish&#8221;\ub97c<\/strong> \uc0ac\uc6a9\ud558\ub3c4\ub85d \uc9c0\uc815\ud558\uc5ec \ubaa8\ub378\uc744 \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#fit the model\n<\/span>model &lt;- glm(offers ~ division + exam, <span style=\"color: #800080;\">family = \"fish\"<\/span> , data = data)\n\n<span style=\"color: #000000;\">#view model output\n<\/span>summary(model)\n\n#Call:\n#glm(formula = offers ~ division + exam, family = \"fish\", data = data)\n#\n#Deviance Residuals: \n# Min 1Q Median 3Q Max  \n#-1.2562 -0.8467 -0.5657 0.3846 2.5033  \n#\n#Coefficients:\n#Estimate Std. Error z value Pr(&gt;|z|)    \n#(Intercept) -7.90602 1.13597 -6.960 3.41e-12 ***\n#divisionB 0.17566 0.27257 0.644 0.519    \n#divisionC -0.05251 0.27819 -0.189 0.850    \n#exam 0.09548 0.01322 7.221 5.15e-13 ***\n#---\n#Significant. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1\n#\n#(Dispersion parameter for fish family taken to be 1)\n#\n# Null deviance: 138,069 on 99 degrees of freedom\n#Residual deviance: 79,247 on 96 degrees of freedom\n#AIC: 204.12\n#\n#Number of Fisher Scoring iterations: 5\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \uad00\ucc30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\ud3ec\uc544\uc1a1 \ud68c\uadc0\uacc4\uc218, \ucd94\uc815\uac12\uc758 \ud45c\uc900\uc624\ucc28, z-\uc810\uc218, \ud574\ub2f9 p-\uac12\uc774 \ubaa8\ub450 \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><em>\ub9ac\ubdf0<\/em> \uacc4\uc218\ub294 <strong>0.09548<\/strong> \uc785\ub2c8\ub2e4. \uc774\ub294 <em>\ub9ac\ubdf0<\/em> 1\ub2e8\uc704 \uc99d\uac00\uc5d0 \ub300\ud55c \uc81c\uc548 \uc218\uc758 \uc608\uc0c1 \ub85c\uadf8 \uc218\uac00 <strong>0.09548<\/strong> \uc784\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub97c \ud574\uc11d\ud558\ub294 \ub354 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \uc9c0\uc218\ud654\ub41c \uac12, \uc989 <strong>e <sup>0.09548<\/sup><\/strong> = <strong>1.10 \uc744<\/strong> \ucde8\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \uc785\ud559 \uc2dc\ud5d8\uc5d0\uc11c \ucd94\uac00 \uc810\uc218\ub97c \ud68d\ub4dd\ud560 \ub54c\ub9c8\ub2e4 \ubc1b\ub294 \uc81c\uc548 \uc218\uac00 10% \uc99d\uac00\ud55c\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><em>\ub514\ube44\uc804 B<\/em> \uc758 \uacc4\uc218\ub294 <strong>0.1756<\/strong> \uc785\ub2c8\ub2e4. \uc774\ub294 \ub514\ube44\uc804 B\uc758 \uc120\uc218\uc5d0 \ub300\ud55c \uc608\uc0c1 \uc81c\uc548 \uc218\uac00 \ub514\ube44\uc804 A\uc758 \uc120\uc218\ubcf4\ub2e4 <strong>0.1756<\/strong> \ub354 \ub192\ub2e4\ub294 \uac83\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub97c \ud574\uc11d\ud558\ub294 \ub354 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \uc9c0\uc218\ud654\ub41c \uac12, \uc989 <strong>e <sup>0.1756<\/sup><\/strong> =\uc744 \ucde8\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. <strong>1.19<\/strong> . \uc774\ub294 B \ubd80\ubb38\uc758 \uc120\uc218\uac00 A \ubd80\ubb38\uc758 \uc120\uc218\ubcf4\ub2e4 19% \ub354 \ub9ce\uc740 \uc81c\uc548\uc744 \ubc1b\ub294\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc774 \ucc28\uc774\ub294 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4(p = 0.519).<\/span><\/li>\n<li> <span style=\"color: #000000;\"><em>\ub514\ube44\uc804 C<\/em> \uc758 \uacc4\uc218\ub294 <strong>-0.05251<\/strong> \uc785\ub2c8\ub2e4. \uc774\ub294 \ub514\ube44\uc804 C\uc758 \ud50c\ub808\uc774\uc5b4\uc5d0 \ub300\ud55c \uc81c\uc548 \uc218\uc758 \uc608\uc0c1 \ub85c\uadf8 \uc218\uac00 \ub514\ube44\uc804 A\uc758 \ud50c\ub808\uc774\uc5b4\ubcf4\ub2e4 <strong>0.05251<\/strong> <i>\ub0ae\ub2e4<\/i> \ub294 \uac83\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub97c \ud574\uc11d\ud558\ub294 \ub354 \uac04\ub2e8\ud55c \ubc29\ubc95\uc740 \uc9c0\uc218\ud654\ub41c \uac12\uc744 \ucde8\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. , \uc989 <strong>e <sup>0.05251<\/sup><\/strong> = <strong>0.94<\/strong> \uc785\ub2c8\ub2e4. \uc774\ub294 C \ubd80\ubb38\uc758 \ud50c\ub808\uc774\uc5b4\uac00 A \ubd80\ubb38\uc758 \ud50c\ub808\uc774\uc5b4\ubcf4\ub2e4 6% \ub354 \uc801\uc740 \uc81c\uc548\uc744 \ubc1b\ub294\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc774 \ucc28\uc774\ub294 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4(p = 850).<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ubaa8\ub378 \uc774\ud0c8\uc5d0 \ub300\ud55c \uc815\ubcf4\ub3c4 \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ud2b9\ud788 <strong>96<\/strong> \uc790\uc720\ub3c4 \uc911 <strong>79,247<\/strong> \uac12\uc744 \uac16\ub294 <em>\uc794\ucc28 \uc774\ud0c8\ub3c4<\/em> \uc5d0 \uad00\uc2ec\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc22b\uc790\ub97c \uc0ac\uc6a9\ud558\uc5ec \uce74\uc774\uc81c\uacf1 \uc801\ud569\ub3c4 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\uc5ec \ubaa8\ub378\uc774 \ub370\uc774\ud130\uc5d0 \uc801\ud569\ud55c\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ucf54\ub4dc\ub294 \uc774 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong>pchisq(79.24679, 96, lower.tail = FALSE)\n\n#[1] 0.8922676\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uc774 \ud14c\uc2a4\ud2b8\uc758 p-\uac12\uc740 <strong>0.89<\/strong> \ub85c, \uc720\uc758 \uc218\uc900 0.05\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc2b5\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ub370\uc774\ud130\uac00 \ubaa8\ub378\uc5d0 \ud569\ub9ac\uc801\uc73c\ub85c \uc798 \ub9de\ub294\ub2e4\ub294 \uacb0\ub860\uc744 \ub0b4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uacb0\uacfc \ubcf4\uae30<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub610\ud55c \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud559\uacfc \ubc0f \uc785\ud559 \uc2dc\ud5d8 \uacb0\uacfc\uc5d0 \ub530\ub77c \uc608\uc0c1\ub418\ub294 \uc7a5\ud559\uae08 \uc81c\uc548 \uc218\ub97c \ubcf4\uc5ec\uc8fc\ub294 \ucc28\ud2b8\ub97c \ub9cc\ub4e4 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#find predicted number of offers using the fitted Poisson regression model\n<\/span>data$phat &lt;- predict(model, type=\"response\")\n\n<span style=\"color: #008080;\">#create plot that shows number of offers based on division and exam score\n<\/span>ggplot(data, aes(x = exam, y = phat, color = division)) +\n  geom_point(aes(y = offers), alpha = .7, position = position_jitter(h = .2)) +\n  geom_line() +\n  labs(x = \"Entrance Exam Score\", y = \"Expected number of scholarship offers\")<\/strong><\/pre>\n<h3><\/h3>\n<p> <span style=\"color: #000000;\">\ucc28\ud2b8\ub294 \uc785\ud559 \uc2dc\ud5d8\uc5d0\uc11c \ub192\uc740 \uc810\uc218\ub97c \ubc1b\uc740 \uc120\uc218\uc5d0\uac8c \uc608\uc0c1\ub418\ub294 \uac00\uc7a5 \ub192\uc740 \uc7a5\ud559\uae08 \uc81c\uc548 \uc218\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ub610\ud55c \ub514\ube44\uc804 B(\ub179\uc0c9 \uc120)\uc758 \ud50c\ub808\uc774\uc5b4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub514\ube44\uc804 A \ub610\ub294 \ub514\ube44\uc804 C\uc758 \ud50c\ub808\uc774\uc5b4\ubcf4\ub2e4 \ub354 \ub9ce\uc740 \uc81c\uc548\uc744 \ubc1b\uc544\uc57c \ud568\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uacb0\uacfc\ubcf4\uace0<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \uacb0\uacfc\ub97c \uc694\uc57d\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \ud68c\uadc0 \uacb0\uacfc\ub97c \ubcf4\uace0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<blockquote>\n<p> <span style=\"color: #000000;\">\ub514\ube44\uc804 \ubc0f \uc785\ud559 \uc2dc\ud5d8 \uc810\uc218\ub97c \uae30\ubc18\uc73c\ub85c \uc57c\uad6c \uc120\uc218\uac00 \ubc1b\ub294 \uc7a5\ud559\uae08 \uc81c\uc548 \uc218\ub97c \uc608\uce21\ud558\uae30 \uc704\ud574 \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc2e4\ud589\ud588\uc2b5\ub2c8\ub2e4. \uc785\ud559 \uc2dc\ud5d8\uc5d0\uc11c \ucd94\uac00 \uc810\uc218\ub97c \uc5bb\uc744 \ub54c\ub9c8\ub2e4 \uc81c\uc548\uc744 \ubc1b\uc740 \ud69f\uc218\uac00 10%\uc529 \uc99d\uac00\ud569\ub2c8\ub2e4( <em>p &lt; 0.0001)<\/em> . \uad6c\ubd84\uc740 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ubbf8\ud55c \uac83\uc73c\ub85c \ud655\uc778\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<\/blockquote>\n<h3> <span style=\"color: #000000;\"><strong>\ucd94\uac00 \ub9ac\uc18c\uc2a4<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/ko\/\u1109\u1165\u11ab\u1112\u1167\u11bc-\u1112\u116c\u1100\u1171-1\/\" target=\"_blank\" rel=\"noopener\">\ub2e8\uc21c \uc120\ud615 \ud68c\uadc0 \uc18c\uac1c<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1161\u110c\u116e\u11bc-\u1109\u1165\u11ab\u1112\u1167\u11bc-\u1112\u116c\u1100\u1171\/\" target=\"_blank\" rel=\"noopener\">\ub2e4\uc911 \uc120\ud615 \ud68c\uadc0 \uc18c\uac1c<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1161\u1112\u1161\u11bc\u1109\u1175\u11a8-\u1112\u116c\u1100\u1171-1\/\" target=\"_blank\" rel=\"noopener\">\ub2e4\ud56d\uc2dd \ud68c\uadc0 \uc18c\uac1c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud68c\uadc0\ub294 \ud558\ub098 \uc774\uc0c1\uc758 \uc608\uce21 \ubcc0\uc218\uc640 \ubc18\uc751 \ubcc0\uc218 \uc0ac\uc774\uc758 \uad00\uacc4\ub97c \ud655\uc778\ud558\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ud1b5\uacc4 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ud3ec\uc544\uc1a1 \ud68c\uadc0\ub294 \uc751\ub2f5 \ubcc0\uc218\uac00 &#8220;\uac1c\uc218 \ub370\uc774\ud130&#8221;\uc778 \ud2b9\uc218\ud55c \uc720\ud615\uc758 \ud68c\uadc0\uc785\ub2c8\ub2e4. \ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uc0ac\ub840\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \uc608 1: \ud3ec\uc544\uc1a1 \ud68c\uadc0 \ubd84\uc11d\uc744 \uc0ac\uc6a9\ud558\uba74 \ud504\ub85c\uadf8\ub7a8 \uc785\ud559 \uc2dc GPA\uc640 \uc131\ubcc4\uc744 \uae30\uc900\uc73c\ub85c \ud2b9\uc815 \ub300\ud559 \ud504\ub85c\uadf8\ub7a8\uc744 \uc878\uc5c5\ud558\ub294 \ud559\uc0dd \uc218\ub97c \uc870\uc0ac\ud560 \uc218 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-493","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\uac1c\uc218 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \ud3ec\uc544\uc1a1 \ud68c\uadc0\uc5d0 \ub300\ud55c \uac04\ub2e8\ud55c \uc18c\uac1c - \ud1b5\uacc4\ud559<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc740 R\uc758 \ub2e8\uacc4\ubcc4 \uc608\uc81c\ub97c \ud3ec\ud568\ud558\uc5ec \uac1c\uc218 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \ud3ec\uc544\uc1a1 \ud68c\uadc0\uc5d0 \ub300\ud55c \uac04\ub2e8\ud55c \uc18c\uac1c\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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