{"id":782,"date":"2024-07-11T08:24:04","date_gmt":"2024-07-11T08:24:04","guid":{"rendered":"http:\/\/www.ohsumin.com\/?p=782"},"modified":"2025-06-11T01:23:00","modified_gmt":"2025-06-11T01:23:00","slug":"%ec%a4%91%ec%8b%ac%ea%b7%b9%ed%95%9c%ec%a0%95%eb%a6%acclt","status":"publish","type":"post","link":"http:\/\/www.inmining.co.kr\/?p=782","title":{"rendered":"\uc911\uc2ec\uadf9\ud55c\uc815\ub9ac(CLT:Central Limit Theorem)"},"content":{"rendered":"\n

\\(\\)<\/p>\n\n\n\n

\uc911\uc2ec\uadf9\ud55c\uc815\ub9ac(Central Limit Theorem, CLT)\ub294 \ud1b5\uacc4\ud559\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc774\ub860 \uc911 \ud558\ub098\ub85c, \ud45c\ubcf8 \ubd84\ud3ec\uc758 \uc131\uc9c8\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ub0b4\uc6a9\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n

<\/span>\uc815\uc758<\/span><\/h3>\n\n\n\n

\uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc870\uac74\uc744 \ub9cc\uc871\ud558\ub294 \uacbd\uc6b0\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n

    \n
  • \ucda9\ubd84\ud788 \ud070 \ud45c\ubcf8 \ud06c\uae30(n)\uac00 \uc788\ub2e4.<\/li>\n\n\n\n
  • \ud45c\ubcf8\uc774 \ubaa8\uc9d1\ub2e8\uc5d0\uc11c \ubb34\uc791\uc704\ub85c \ucd94\ucd9c\ub41c\ub2e4.<\/li>\n\n\n\n
  • \ud45c\ubcf8\uc758 \ud06c\uae30\uac00 \ucee4\uc9c8\uc218\ub85d, \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec\ub294 \ubaa8\uc9d1\ub2e8\uc758 \ubd84\ud3ec\uc640 \uc0c1\uad00\uc5c6\uc774 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c4\ub2e4.<\/li>\n<\/ul>\n\n\n\n

    \uc989, \uc5b4\ub5a4 \ubaa8\uc9d1\ub2e8\uc5d0\uc11c \ud45c\ubcf8\uc744 \ucd94\ucd9c\ud558\ub354\ub77c\ub3c4, \uadf8 \ud45c\ubcf8\ub4e4\uc758 \ud3c9\uade0\uc740 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c4\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub294 \ubaa8\uc9d1\ub2e8\uc774 \uc815\uaddc\ubd84\ud3ec\ub97c \ub530\ub974\uc9c0 \uc54a\ub354\ub77c\ub3c4 \uc131\ub9bd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    <\/span>\uc218\ud559\uc801 \ud45c\ud604<\/span><\/h3>\n\n\n\n

    \ubaa8\uc9d1\ub2e8\uc758 \ud3c9\uade0\uc744 \\(\\mu\\), \ud45c\uc900\ud3b8\ucc28\ub97c \\(\\sigma\\)\ub77c\uace0 \ud558\uace0, \ud45c\ubcf8 \ud06c\uae30\ub97c (n)\uc774\ub77c\uace0 \ud560 \ub54c, \ud45c\ubcf8 \ud3c9\uade0 \\(\\bar{X}\\)\uc758 \ubd84\ud3ec\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9d1\ub2c8\ub2e4:
    \\[ \\bar{X} \\sim N\\left(\\mu, \\frac{\\sigma}{\\sqrt{n}}\\right)\\]<\/p>\n\n\n\n

    \uc5ec\uae30\uc11c:<\/p>\n\n\n\n

      \n
    • \\(\\bar{X}\\)\ub294 \ud45c\ubcf8 \ud3c9\uade0<\/li>\n\n\n\n
    • \\(N(\\mu, \\frac{\\sigma}{\\sqrt{n}})\\)\ub294 \ud3c9\uade0\uc774 \\(\\mu\\)\uc774\uace0 \ud45c\uc900\ud3b8\ucc28\uac00 \\(\\frac{\\sigma}{\\sqrt{n}}\\)\uc778 \uc815\uaddc\ubd84\ud3ec<\/li>\n<\/ul>\n\n\n\n

      <\/span>\uc911\uc694\uc131<\/span><\/h3>\n\n\n\n

      \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub294 \ud1b5\uacc4\ud559\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc774\ub294 \uc2e4\uc81c\ub85c \ub9ce\uc740 \ud1b5\uacc4\uc801 \ubc29\ubc95\ub860\uacfc \ucd94\ub860\uc774 \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\uc5d0 \uae30\ubc18\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uac00\uc124 \uac80\uc815, \uc2e0\ub8b0 \uad6c\uac04 \uacc4\uc0b0 \ub4f1\uc740 \ubaa8\ub450 \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub97c \uc774\uc6a9\ud558\uc5ec \uc218\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

      <\/span>\uc608\uc81c<\/span><\/h3>\n\n\n\n

      \uc608\uc81c 1: \uc8fc\uc0ac\uc704 \uad74\ub9ac\uae30<\/h4>\n\n\n\n
        \n
      • \uc8fc\uc0ac\uc704\ub97c \ud55c \ubc88 \uad74\ub9ac\uba74 \uacb0\uacfc\ub294 1\uc5d0\uc11c 6 \uc0ac\uc774\uc758 \uac12\uc73c\ub85c \uade0\uc77c\ud558\uac8c \ubd84\ud3ec\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
      • \uc8fc\uc0ac\uc704\ub97c 30\ubc88 \uad74\ub9ac\uace0 \uadf8 \ud3c9\uade0\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc744 \uc5ec\ub7ec \ubc88 \ubc18\ubcf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
      • \uac01 \ud45c\ubcf8 \ud3c9\uade0\uc744 \ud788\uc2a4\ud1a0\uadf8\ub7a8\uc73c\ub85c \uadf8\ub9ac\uba74, \uadf8 \ubd84\ud3ec\ub294 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c0\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

        \uc608\uc81c 2: \ube44\uc815\uaddc \ubd84\ud3ec<\/h4>\n\n\n\n
          \n
        • \ube44\uc815\uaddc \ubd84\ud3ec(\uc608: \uc9c0\uc218 \ubd84\ud3ec)\ub97c \ub530\ub974\ub294 \ubaa8\uc9d1\ub2e8\uc5d0\uc11c \ud45c\ubcf8\uc744 \ucd94\ucd9c\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
        • \ud45c\ubcf8 \ud06c\uae30\ub97c 30\uc73c\ub85c \ud558\uace0, \uc5ec\ub7ec \ubc88 \ubc18\ubcf5\ud558\uc5ec \ud45c\ubcf8 \ud3c9\uade0\uc744 \uad6c\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
        • \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec\ub294 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

          <\/span>\uc2dc\uac01\uc801 \uc124\uba85<\/span><\/h3>\n\n\n\n
            \n
          • \uc6d0\ub798 \ub370\uc774\ud130 \ubd84\ud3ec<\/strong>: \ubaa8\uc9d1\ub2e8\uc758 \uc6d0\ub798 \ubd84\ud3ec\uac00 \ube44\uc815\uaddc\ubd84\ud3ec\ub77c\ub3c4, \uc608\ub97c \ub4e4\uc5b4 \uc67c\ucabd\uc73c\ub85c \uce58\uc6b0\uce5c \uc9c0\uc218\ubd84\ud3ec\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n
          • \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec<\/strong>: \ud45c\ubcf8 \ud3c9\uade0\uc744 \uc5ec\ub7ec \ubc88 \uacc4\uc0b0\ud558\uba74, \uadf8 \ubd84\ud3ec\ub294 \uc810\uc810 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

            \uc704 \uc774\ubbf8\uc9c0\ub294 \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac(Central Limit Theorem, CLT)\ub97c \uc2dc\uac01\uc801\uc73c\ub85c \uc124\uba85\ud55c \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

            \"\"<\/figure>\n\n\n\n
              \n
            • \uc67c\ucabd \uadf8\ub798\ud504<\/strong>: \uc6d0\ub798 \ub370\uc774\ud130\uc758 \ubd84\ud3ec\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \uc9c0\uc218 \ubd84\ud3ec(Exponential Distribution)\ub97c \uc0ac\uc6a9\ud558\uc600\uc73c\uba70, \uc774 \ubd84\ud3ec\ub294 \ube44\uc815\uaddc \ubd84\ud3ec\uc785\ub2c8\ub2e4. \ub370\uc774\ud130\ub294 \uc67c\ucabd\uc73c\ub85c \uce58\uc6b0\uccd0 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n
            • \uc624\ub978\ucabd \uadf8\ub798\ud504<\/strong>: \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec\uc785\ub2c8\ub2e4. \uc5ec\ub7ec \uac1c\uc758 \ud45c\ubcf8(\uac01 \ud45c\ubcf8\uc758 \ud06c\uae30\ub294 30)\uc744 \ucd94\ucd9c\ud558\uace0 \uac01 \ud45c\ubcf8\uc758 \ud3c9\uade0\uc744 \uacc4\uc0b0\ud55c \ud6c4, \uadf8 \ud3c9\uade0\ub4e4\uc758 \ubd84\ud3ec\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\uc5d0 \ub530\ub974\uba74, \ube44\ub85d \uc6d0\ub798 \ub370\uc774\ud130\uac00 \ube44\uc815\uaddc \ubd84\ud3ec\ub97c \ub530\ub974\ub354\ub77c\ub3c4, \ucda9\ubd84\ud788 \ud070 \ud45c\ubcf8\uc758 \ud3c9\uade0 \ubd84\ud3ec\ub294 \uc815\uaddc \ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c0\uac8c \ub429\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

              \uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \uc6d0\ub798 \ube44\uc815\uaddc \ubd84\ud3ec\uc778 \uc9c0\uc218 \ubd84\ud3ec\uc5d0\uc11c \ud45c\ubcf8\uc744 \uc5ec\ub7ec \ubc88 \ucd94\ucd9c\ud558\uc5ec \uadf8 \ud45c\ubcf8 \ud3c9\uade0\uc744 \uad6c\ud588\uc744 \ub54c, \uadf8 \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec\uac00 \uc815\uaddc \ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c0\ub294 \uac83\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\uac00 \uc131\ub9bd\ud568\uc744 \uc2dc\uac01\uc801\uc73c\ub85c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n

              <\/span>\uacb0\ub860<\/span><\/h3>\n\n\n\n

              \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub294 \ud45c\ubcf8 \ud06c\uae30\uac00 \ucda9\ubd84\ud788 \ud06c\ub2e4\uba74, \ud45c\ubcf8 \ud3c9\uade0\uc758 \ubd84\ud3ec\uac00 \ubaa8\uc9d1\ub2e8\uc758 \ubd84\ud3ec \ud615\ud0dc\uc5d0 \uad00\uacc4\uc5c6\uc774 \uc815\uaddc\ubd84\ud3ec\uc5d0 \uac00\uae4c\uc6cc\uc9c4\ub2e4\ub294 \uc911\uc694\ud55c \ud1b5\uacc4\uc801 \uc6d0\ub9ac\uc785\ub2c8\ub2e4. \uc774\ub294 \ub2e4\uc591\ud55c \ud1b5\uacc4\uc801 \ucd94\ub860\uacfc \ubd84\uc11d\uc5d0 \uc911\uc694\ud55c \uae30\ucd08\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

              \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac(Central Limit Theorem, CLT)\ub294 \ud1b5\uacc4\ud559\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud55c \uc774\ub860 \uc911 \ud558\ub098\ub85c, \ud45c\ubcf8 \ubd84\ud3ec\uc758 \uc131\uc9c8\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc911\uc2ec\uadf9\ud55c\uc815\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ub0b4\uc6a9\uc744…<\/p>\n","protected":false},"author":1,"featured_media":874,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-782","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stat","wpcat-6-id"],"_links":{"self":[{"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=782"}],"version-history":[{"count":3,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/782\/revisions"}],"predecessor-version":[{"id":878,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/782\/revisions\/878"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=\/wp\/v2\/media\/874"}],"wp:attachment":[{"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=782"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.inmining.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}