{"id":1674,"date":"2023-07-25T10:32:48","date_gmt":"2023-07-25T10:32:48","guid":{"rendered":"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/"},"modified":"2023-07-25T10:32:48","modified_gmt":"2023-07-25T10:32:48","slug":"varp-vs-vars-no-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/","title":{"rendered":"Var.p vs var.s no excel: qual a diferen\u00e7a?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Existem tr\u00eas fun\u00e7\u00f5es diferentes que voc\u00ea pode usar para calcular a varia\u00e7\u00e3o no Excel:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1. VAR.P:<\/strong> Esta fun\u00e7\u00e3o calcula a vari\u00e2ncia populacional. Use esta fun\u00e7\u00e3o quando o intervalo de valores representar toda a popula\u00e7\u00e3o.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Esta fun\u00e7\u00e3o usa a seguinte f\u00f3rmula:<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\">Vari\u00e2ncia populacional = \u03a3(x <sub>i<\/sub> \u2013 \u03bc) <sup>2<\/sup> \/ N<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\u03a3:<\/strong> Um s\u00edmbolo grego que significa \u201csoma\u201d<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>x <sub>i<\/sub> :<\/strong> o i- <sup>\u00e9simo<\/sup> valor do conjunto de dados<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\u03bc:<\/strong> a m\u00e9dia da popula\u00e7\u00e3o<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>N:<\/strong> O n\u00famero total de observa\u00e7\u00f5es<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>2. VAR.S:<\/strong> Esta fun\u00e7\u00e3o calcula a vari\u00e2ncia da amostra. Use esta fun\u00e7\u00e3o quando o intervalo de valores representar uma amostra de valores em vez de uma popula\u00e7\u00e3o inteira.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Esta fun\u00e7\u00e3o usa a seguinte f\u00f3rmula:<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\">Vari\u00e2ncia amostral = \u03a3(x <sub>i<\/sub> \u2013 <span style=\"border-top: 1px solid black;\">x<\/span> ) <sup>2<\/sup> \/ (n-1)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\u03a3:<\/strong> Um s\u00edmbolo grego que significa \u201csoma\u201d<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>x <sub>i<\/sub> :<\/strong> o i- <sup>\u00e9simo<\/sup> valor do conjunto de dados<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong><span style=\"text-decoration: overline;\">x<\/span> :<\/strong> A amostra significa<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>N:<\/strong> O n\u00famero total de observa\u00e7\u00f5es<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>3. VAR:<\/strong> Esta fun\u00e7\u00e3o tamb\u00e9m calcula a vari\u00e2ncia da amostra. Ele retornar\u00e1 exatamente o mesmo valor da fun\u00e7\u00e3o <strong>VAR.S.<\/strong><\/span><\/p>\n<blockquote>\n<p> <span style=\"color: #000000;\"><strong>Nota t\u00e9cnica:<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Como a f\u00f3rmula para a vari\u00e2ncia da popula\u00e7\u00e3o se divide por <em>N<\/em> em vez de <em>n-1<\/em> , a vari\u00e2ncia da popula\u00e7\u00e3o ser\u00e1 sempre menor que a vari\u00e2ncia da amostra.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A raz\u00e3o pela qual a vari\u00e2ncia da popula\u00e7\u00e3o ser\u00e1 menor \u00e9 que se conhecermos o valor de cada popula\u00e7\u00e3o, saberemos a vari\u00e2ncia exata.<\/span><\/p>\n<p> <span style=\"color: #000000;\">No entanto, quando temos apenas uma amostra da popula\u00e7\u00e3o, temos mais incerteza sobre a vari\u00e2ncia exacta da popula\u00e7\u00e3o global, pelo que a nossa estimativa da vari\u00e2ncia deve ser maior.<\/span><\/p>\n<\/blockquote>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar essas fun\u00e7\u00f5es na pr\u00e1tica.<\/span><\/p>\n<h3> <strong>Exemplo: VAR.P vs VAR.S no Excel<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte conjunto de dados no Excel:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-16498 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/varp1.png\" alt=\"\" width=\"447\" height=\"451\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A captura de tela a seguir mostra como calcular a varia\u00e7\u00e3o do conjunto de dados usando tr\u00eas f\u00f3rmulas de varia\u00e7\u00e3o diferentes:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-16499 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/varp2.png\" alt=\"VAR.P vs VAR.S no Excel\" width=\"474\" height=\"474\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A vari\u00e2ncia da amostra \u00e9 <strong>76,99<\/strong> e a vari\u00e2ncia da popula\u00e7\u00e3o \u00e9 <strong>73,14<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Conforme mencionado anteriormente, a vari\u00e2ncia da popula\u00e7\u00e3o ser\u00e1 sempre menor que a vari\u00e2ncia da amostra.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Quando usar VAR.P vs VAR.S<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Na maioria dos casos n\u00e3o conseguimos recolher dados de uma popula\u00e7\u00e3o inteira. Portanto, coletamos dados apenas para uma <a href=\"https:\/\/statorials.org\/pt\/populacao-vs.-amostra\/\" target=\"_blank\" rel=\"noopener\">amostra<\/a> da popula\u00e7\u00e3o.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Portanto, quase sempre usamos <strong>VAR.S<\/strong> para calcular a vari\u00e2ncia de um conjunto de dados porque nosso conjunto de dados geralmente representa uma amostra.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Observe que <strong>VAR<\/strong> e <strong>VAR.S<\/strong> retornam exatamente os mesmos valores, portanto podemos usar qualquer uma das fun\u00e7\u00f5es para calcular a vari\u00e2ncia amostral de um determinado conjunto de dados.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/stdevp-vs-stdevs-no-excel\/\" target=\"_blank\" rel=\"noopener\">STDEV.P vs STDEV.S no Excel: Qual \u00e9 a diferen\u00e7a?<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/intervalo-interquartil-excel\/\" target=\"_blank\" rel=\"noopener\">Como calcular o intervalo interquartil (IQR) no Excel<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/excelente-faixa-media\/\" target=\"_blank\" rel=\"noopener\">Como calcular m\u00e9dio porte no Excel<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Existem tr\u00eas fun\u00e7\u00f5es diferentes que voc\u00ea pode usar para calcular a varia\u00e7\u00e3o no Excel: 1. VAR.P: Esta fun\u00e7\u00e3o calcula a vari\u00e2ncia populacional. Use esta fun\u00e7\u00e3o quando o intervalo de valores representar toda a popula\u00e7\u00e3o. Esta fun\u00e7\u00e3o usa a seguinte f\u00f3rmula: Vari\u00e2ncia populacional = \u03a3(x i \u2013 \u03bc) 2 \/ N Ouro: \u03a3: Um s\u00edmbolo grego [&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":[],"class_list":["post-1674","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>VAR.P vs VAR.S no Excel: qual a diferen\u00e7a?<\/title>\n<meta name=\"description\" content=\"Este tutorial explica a diferen\u00e7a entre as fun\u00e7\u00f5es VAR.P e VAR.S no Excel, com exemplos.\" \/>\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\/pt\/varp-vs-vars-no-excel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"VAR.P vs VAR.S no Excel: qual a diferen\u00e7a?\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica a diferen\u00e7a entre as fun\u00e7\u00f5es VAR.P e VAR.S no Excel, com exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T10:32:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/varp1.png\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/\",\"url\":\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/\",\"name\":\"VAR.P vs VAR.S no Excel: qual a diferen\u00e7a?\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-25T10:32:48+00:00\",\"dateModified\":\"2023-07-25T10:32:48+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica a diferen\u00e7a entre as fun\u00e7\u00f5es VAR.P e VAR.S no Excel, com exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/varp-vs-vars-no-excel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Var.p vs var.s no excel: qual a diferen\u00e7a?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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