{"id":1425,"date":"2023-07-26T10:55:43","date_gmt":"2023-07-26T10:55:43","guid":{"rendered":"https:\/\/statorials.org\/id\/distribusi-simetris\/"},"modified":"2023-07-26T10:55:43","modified_gmt":"2023-07-26T10:55:43","slug":"distribusi-simetris","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/distribusi-simetris\/","title":{"rendered":"Distribusi simetris: definisi + contoh"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Dalam statistika, <strong>distribusi simetris<\/strong> adalah distribusi yang sisi kiri dan kanannya saling bercermin.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Distribusi simetris yang paling terkenal adalah distribusi normal , yang memiliki bentuk lonceng yang berbeda.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14080 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique1.png\" alt=\"Distribusi simetris\" width=\"338\" height=\"324\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Jika Anda menggambar garis di tengah distribusi, sisi kiri dan kanan distribusi akan mencerminkan satu sama lain dengan sempurna:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14084 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique5.png\" alt=\"Contoh distribusi simetris dalam statistik\" width=\"360\" height=\"350\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Dalam statistik, <strong>skewness<\/strong> adalah cara untuk menggambarkan simetri suatu distribusi. Nilai ini bisa negatif, nol atau positif.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Untuk distribusi simetris, asimetrinya adalah nol.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Hal ini kontras dengan distribusi condong ke kiri, yang mempunyai kecondongan negatif:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-13359 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/biais2.png\" alt=\"\" width=\"301\" height=\"308\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Hal ini juga kontras dengan distribusi kecondongan kanan, yang memiliki kecondongan positif:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-13358 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/biais1.png\" alt=\"\" width=\"300\" height=\"308\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sifat-sifat distribusi simetris<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Dalam distribusi simetris, mean, median, dan modus semuanya sama.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-13363 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/biais5.png\" alt=\"\" width=\"454\" height=\"246\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Ingat definisi berikut untuk masing-masing:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>Rata-rata:<\/strong> nilai rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Median:<\/strong> nilai rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Mode :<\/strong> nilai yang paling sering muncul.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Dalam distribusi simetris, masing-masing nilai ini sama satu sama lain.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Dalam setiap contoh sejauh ini, kami telah menggunakan distribusi unimodal sebagai contoh \u2013 distribusi dengan hanya satu \u201cpuncak\u201d. Namun, suatu distribusi juga bisa bersifat bimodal dan simetris.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/id\/distribusi-bimodal\/\" target=\"_blank\" rel=\"noopener\">Distribusi bimodal<\/a> adalah distribusi yang mempunyai dua puncak.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14085 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique6.png\" alt=\"Distribusi simetris untuk contoh distribusi bimodal\" width=\"417\" height=\"282\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa jika kita menggambar garis di tengah-tengah distribusi ini, sisi kiri dan kanan akan tetap bercermin satu sama lain.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk distribusi ini, mean dan mediannya sama. Namun modusnya terletak pada kedua simpul tersebut.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14086 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique7.png\" alt=\"\" width=\"430\" height=\"306\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh Distribusi Simetris Lainnya<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Selain distribusi normal, distribusi berikut juga simetris:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Distribusi t<\/strong><\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14083 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique4.png\" alt=\"\" width=\"285\" height=\"282\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Distribusi seragam<\/strong><\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14082 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique3.png\" alt=\"\" width=\"234\" height=\"220\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Distribusi Cauchy<\/strong><\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14081 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique2.png\" alt=\"\" width=\"311\" height=\"304\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Jika Anda menggambar garis di tengah-tengah salah satu distribusi ini, sisi kiri dan kanan setiap distribusi akan mencerminkan satu sama lain dengan sempurna.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Distribusi simetris dan teorema limit pusat<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Salah satu teorema terpenting dalam semua statistik adalah teorema limit pusat, yang menyatakan bahwa <a href=\"https:\/\/statorials.org\/id\/distribusi-pengambilan-sampel-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">distribusi sampling dari rata-rata sampel<\/a> mendekati normal jika ukuran sampel cukup besar, <em>meskipun distribusi populasi tidak normal<\/em> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk menerapkan teorema limit pusat, ukuran sampel harus cukup besar. Ternyata jumlah penduduk yang \u201ccukup besar\u201d bergantung pada bentuk distribusi penduduk.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Khususnya:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Jika distribusi populasi simetris, ukuran sampel sekecil 15 terkadang sudah cukup.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Jika distribusi populasi tidak seimbang, biasanya diperlukan sampel minimal 30 orang.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Jika distribusi populasi sangat tidak seimbang, mungkin diperlukan sampel sebanyak 40 orang atau lebih.<\/span><\/li>\n<\/ul>\n<p data-slot-rendered-dynamic=\"true\"> <span style=\"color: #000000;\">Jadi keuntungan dari distribusi simetris adalah kita memerlukan ukuran sampel yang lebih kecil untuk menerapkan teorema limit pusat saat menghitung interval kepercayaan atau melakukan <a href=\"https:\/\/statorials.org\/id\/pengujian-hipotesis-1\/\" target=\"_blank\" rel=\"noopener\">pengujian hipotesis<\/a> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/teorema-limit-pusat\/\" target=\"_blank\" rel=\"noopener\">Pengantar Teorema Limit Pusat<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/distribusi-bimodal\/\" target=\"_blank\" rel=\"noopener\">Apa itu distribusi bimodal?<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/bias-kiri-vs-bias-kanan\/\" target=\"_blank\" rel=\"noopener\">Panduan Distribusi Miring Kiri dan Kanan<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dalam statistika, distribusi simetris adalah distribusi yang sisi kiri dan kanannya saling bercermin. Distribusi simetris yang paling terkenal adalah distribusi normal , yang memiliki bentuk lonceng yang berbeda. Jika Anda menggambar garis di tengah distribusi, sisi kiri dan kanan distribusi akan mencerminkan satu sama lain dengan sempurna: Dalam statistik, skewness adalah cara untuk menggambarkan simetri [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Distribusi simetris: definisi + contoh<\/title>\n<meta name=\"description\" content=\"Tutorial ini memberikan penjelasan tentang distribusi simetris, termasuk definisi formal dan beberapa contoh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/id\/distribusi-simetris\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Distribusi simetris: definisi + contoh\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini memberikan penjelasan tentang distribusi simetris, termasuk definisi formal dan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/distribusi-simetris\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T10:55:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/symetrique1.png\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/distribusi-simetris\/\",\"url\":\"https:\/\/statorials.org\/id\/distribusi-simetris\/\",\"name\":\"Distribusi simetris: definisi + contoh\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-26T10:55:43+00:00\",\"dateModified\":\"2023-07-26T10:55:43+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini memberikan penjelasan tentang distribusi simetris, termasuk definisi formal dan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/distribusi-simetris\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/distribusi-simetris\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/distribusi-simetris\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Distribusi simetris: definisi + contoh\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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