{"id":2158,"date":"2023-07-23T11:09:27","date_gmt":"2023-07-23T11:09:27","guid":{"rendered":"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/"},"modified":"2023-07-23T11:09:27","modified_gmt":"2023-07-23T11:09:27","slug":"sampel-varian-populasi-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/","title":{"rendered":"Cara menghitung varians sampel &amp; populasi dengan python"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Varians<\/strong> adalah cara untuk mengukur sebaran nilai dalam suatu kumpulan data.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Rumus untuk menghitung <strong>varians populasi<\/strong> adalah:<\/span><\/p>\n<p style=\"text-align: left;\"> <span style=\"color: #000000;\"><strong>\u03c3 <sup>2<\/sup><\/strong> = \u03a3 ( <sub>xi<\/sub> \u2013 \u03bc) <sup>2<\/sup> \/ N<\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\u03a3<\/strong> : Simbol yang berarti \u201cjumlah\u201d<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\u03bc<\/strong> : Rata-rata populasi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>x <sub>i<\/sub><\/strong> : Elemen ke- <sup>i<\/sup> dari populasi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>N<\/strong> : Ukuran populasi<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Rumus untuk menghitung <strong>varians sampel<\/strong> adalah:<\/span><\/p>\n<p style=\"text-align: left;\"> <span style=\"color: #000000;\"><strong>s <sup>2<\/sup><\/strong> = \u03a3 ( <sub>xi<\/sub> \u2013 <span style=\"text-decoration: overline;\">x<\/span> ) <sup>2<\/sup> \/ (n-1)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong><span style=\"text-decoration: overline;\">x<\/span><\/strong> : mean sampel<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>x <sub>i<\/sub><\/strong> : Elemen ke- <sup>i<\/sup> dari sampel<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n<\/strong> : Ukuran sampel<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Kita dapat menggunakan fungsi <strong>varians<\/strong> dan <strong>pvarians<\/strong> dari perpustakaan <a href=\"https:\/\/docs.python.org\/3\/library\/statistics.html\" target=\"_blank\" rel=\"noopener\">statistik<\/a> dengan Python untuk menghitung dengan cepat varians sampel dan varians populasi (masing-masing) untuk tabel tertentu.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">from<\/span> statistics <span style=\"color: #008000;\">import<\/span> variance, pvariance<\/span>\n\n#calculate sample variance<\/span>\nvariance(s)\n\n<span style=\"color: #008080;\">#calculate population variance\n<\/span>pvariance(x)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan setiap fungsi dalam praktik.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Menghitung Varians Sampel dengan Python<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menghitung varians sampel tabel dengan Python:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">from<\/span> statistics <span style=\"color: #008000;\">import<\/span> variance<\/span> \n\n#define data<\/span>\ndata = [4, 8, 12, 15, 9, 6, 14, 18, 12, 9, 16, 17, 17, 20, 14]\n\n<span style=\"color: #008080;\">#calculate sample variance\n<\/span>variance(data)\n\n22,067\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Varians sampelnya ternyata <strong>22.067<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Menghitung Varians Populasi dengan Python<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menghitung varians populasi suatu tabel dengan Python:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">from<\/span> statistics <span style=\"color: #008000;\">import<\/span> pvariance<\/span> \n\n#define data<\/span>\ndata = [4, 8, 12, 15, 9, 6, 14, 18, 12, 9, 16, 17, 17, 20, 14]\n\n<span style=\"color: #008080;\">#calculate sample variance\n<\/span>pvariance(data)\n\n20,596<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Varians populasinya ternyata <strong>20.596<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Catatan tentang Menghitung Varians Sampel dan Populasi<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Ingatlah hal berikut saat menghitung varians sampel dan populasi:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Anda harus menghitung <strong>varians populasi<\/strong> ketika kumpulan data yang Anda gunakan mewakili seluruh populasi, yaitu setiap nilai yang Anda minati.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Anda harus menghitung <strong>varians sampel<\/strong> ketika kumpulan data yang Anda gunakan mewakili sampel yang diambil dari populasi yang lebih besar.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Varians sampel suatu tabel data tertentu akan selalu lebih besar daripada varians populasi untuk tabel data yang sama karena terdapat lebih banyak ketidakpastian saat menghitung varians sampel, sehingga estimasi varians kita akan lebih besar.<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara menghitung metrik spread lainnya dengan Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/rentang-interkuartil-python\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung rentang interkuartil dengan Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/koefisien-variasi-dalam-python\/\" target=\"_blank\" rel=\"noopener\">Cara Menghitung Koefisien Variasi dengan Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/deviasi-standar-daftar-python\/\" target=\"_blank\" rel=\"noopener\">Cara menghitung deviasi standar daftar dengan Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Varians adalah cara untuk mengukur sebaran nilai dalam suatu kumpulan data. Rumus untuk menghitung varians populasi adalah: \u03c3 2 = \u03a3 ( xi \u2013 \u03bc) 2 \/ N Emas: \u03a3 : Simbol yang berarti \u201cjumlah\u201d \u03bc : Rata-rata populasi x i : Elemen ke- i dari populasi N : Ukuran populasi Rumus untuk menghitung varians [&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>Cara menghitung varians sampel dan populasi dengan Python - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung varians sampel dan varians populasi dengan Python, dengan 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\/sampel-varian-populasi-python\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menghitung varians sampel dan populasi dengan Python - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung varians sampel dan varians populasi dengan Python, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T11:09:27+00:00\" \/>\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=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/\",\"url\":\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/\",\"name\":\"Cara menghitung varians sampel dan populasi dengan Python - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-23T11:09:27+00:00\",\"dateModified\":\"2023-07-23T11:09:27+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung varians sampel dan varians populasi dengan Python, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/sampel-varian-populasi-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung varians sampel &amp; populasi dengan python\"}]},{\"@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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