{"id":409,"date":"2023-07-30T11:20:46","date_gmt":"2023-07-30T11:20:46","guid":{"rendered":"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/"},"modified":"2023-07-30T11:20:46","modified_gmt":"2023-07-30T11:20:46","slug":"bigodes-de-caixa","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/","title":{"rendered":"Gr\u00e1ficos de caixa"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Um <strong>boxplot<\/strong> (\u00e0s vezes chamado de box and whisker plot) \u00e9 um gr\u00e1fico que mostra o resumo de cinco n\u00fameros de um conjunto de dados.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O resumo de cinco n\u00fameros inclui:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">M\u00ednimo<\/span><\/li>\n<li> <span style=\"color: #000000;\">O primeiro quartil<\/span><\/li>\n<li> <span style=\"color: #000000;\">A mediana<\/span><\/li>\n<li> <span style=\"color: #000000;\">O terceiro quartil<\/span><\/li>\n<li> <span style=\"color: #000000;\">O m\u00e1ximo<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Um boxplot nos permite visualizar facilmente a distribui\u00e7\u00e3o de valores em um conjunto de dados usando um gr\u00e1fico simples.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Como criar um boxplot<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Para criar um boxplot, desenhamos uma caixa do primeiro ao terceiro quartil. A seguir, tra\u00e7amos uma linha vertical na mediana. Por fim, tra\u00e7amos \u201cbigodes\u201d dos quartis at\u00e9 o valor m\u00ednimo e m\u00e1ximo.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-573 size-full aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boite-a-moustaches.png\" alt=\"\" width=\"401\" height=\"115\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte conjunto de dados que mostra a altura de dez plantas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-571  aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/hauteurs_plantes.png\" alt=\"\" width=\"102\" height=\"258\" srcset=\"\" sizes=\"auto, \"><br \/> Para criar um boxplot, precisamos encontrar o m\u00ednimo, primeiro quartil, mediana, terceiro quartil e m\u00e1ximo.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 1: organize os dados do menor para o maior.<\/strong><\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\">10, 11, 12, 12, 13, 14, 16, 19, 20, 24<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 2: Encontre a mediana.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Neste caso, \u00e9 a m\u00e9dia dos dois n\u00fameros do meio:<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\">10, 11, 12, 12, <span style=\"color: #ff0000;\"><strong>13, 14<\/strong><\/span> , 16, 19, 20, 24<\/span><\/p>\n<p> <span style=\"color: #000000;\">Mediana = (13 + 14) \/ 2 = 13,5<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 3: Encontre o quartil inferior (Q1) e o quartil superior (Q3).<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">O quartil inferior \u00e9 a mediana dos n\u00fameros \u00e0 esquerda da mediana. Neste caso, s\u00e3o 12 horas.<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\"><strong>10, 11, <span style=\"color: #ff0000;\">12<\/span> , 12, 13<\/strong> , 14, 16, 19, 20, 24<\/span><\/p>\n<p> <span style=\"color: #000000;\">O quartil superior \u00e9 a mediana dos n\u00fameros \u00e0 direita da mediana. Neste caso, s\u00e3o 19h.<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\">10, 11, 12, 12, 13, <strong>14, 16, <span style=\"color: #ff0000;\">19<\/span> , 20, 24<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 4: Encontre os valores m\u00ednimo e m\u00e1ximo.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">O m\u00ednimo \u00e9 10 e o m\u00e1ximo \u00e9 24.<\/span><\/p>\n<p style=\"text-align: center;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #ff0000;\">10<\/span><\/strong> , 11, 12, 12, 13, 14, 16, 19, 20, <strong><span style=\"color: #ff0000;\">24<\/span><\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 5: desenhe o boxplot usando nosso resumo de cinco n\u00fameros.<\/strong><\/span><\/p>\n<p> <strong><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-574  aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/exemple_boxplot.png\" alt=\"\" width=\"390\" height=\"135\" srcset=\"\" sizes=\"auto, \"><\/strong><\/p>\n<h3> <strong><span style=\"color: #000000;\">Por que os boxplots s\u00e3o \u00fateis?<\/span><\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Os boxplots s\u00e3o \u00fateis porque nos ajudam a visualizar cinco estat\u00edsticas descritivas importantes de um conjunto de dados: o m\u00ednimo, o quartil inferior, a mediana, o quartil superior e o m\u00e1ximo.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Boxplots tamb\u00e9m nos ajudam a responder facilmente a perguntas como:<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\"><em>Qual \u00e9 a altura m\u00e9dia da planta?<\/em><\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Para responder a esta quest\u00e3o, podemos procurar a linha vertical dentro da caixa que indica a mediana. Neste caso, s\u00e3o 13,5 polegadas.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-576  aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boxplot_ex1.png\" alt=\"\" width=\"369\" height=\"126\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <strong><span style=\"color: #000000;\"><em>Qual \u00e9 a altura da planta mais alta?<\/em><\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Para responder a esta quest\u00e3o, podemos procurar o ponto na extremidade do bigode direito que indica o m\u00e1ximo. Neste caso, s\u00e3o 24 polegadas.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-577  aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boxplot_ex2.png\" alt=\"\" width=\"375\" height=\"122\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <strong><span style=\"color: #000000;\"><em>Qual porcentagem de plantas tem mais de 19 polegadas de altura?<\/em><\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Para responder a esta quest\u00e3o, podemos observar que o quartil superior (Q3) \u00e9 igual a 19. Lembre-se que o quartil superior representa o percentil 75, o que significa que 75% dos valores s\u00e3o iguais ou inferiores a 19.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Isso significa que 25% dos valores s\u00e3o maiores que 19. Portanto, 25% das plantas s\u00e3o maiores que 19 polegadas.<\/span> <\/p>\n<h3><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-580  aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boxplot_ex3.png\" alt=\"\" width=\"376\" height=\"124\" srcset=\"\" sizes=\"auto, \"><\/h3>\n<h3> <strong><span style=\"color: #000000;\">Como criar gr\u00e1ficos de caixa usando software diferente<\/span><\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir fornecem exemplos passo a passo sobre como criar box plots usando diferentes softwares:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/graficos-de-caixa-do-excel\/\" target=\"_blank\" rel=\"noopener\">Como criar gr\u00e1ficos de caixa no Excel<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/boxplot-planilhas-do-google\/\" target=\"_blank\" rel=\"noopener\">Como criar um box plot no Planilhas Google<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/boxplots-spss\/\" target=\"_blank\" rel=\"noopener\">Como criar gr\u00e1ficos de caixa no SPSS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/estatisticas-de-graficos-de-caixa\/\" target=\"_blank\" rel=\"noopener\">Como criar gr\u00e1ficos de caixa no Stata<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/gerador-de-boxplot\/\" target=\"_blank\" rel=\"noopener\">Gerador de Box Plot Online<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um boxplot (\u00e0s vezes chamado de box and whisker plot) \u00e9 um gr\u00e1fico que mostra o resumo de cinco n\u00fameros de um conjunto de dados. O resumo de cinco n\u00fameros inclui: M\u00ednimo O primeiro quartil A mediana O terceiro quartil O m\u00e1ximo Um boxplot nos permite visualizar facilmente a distribui\u00e7\u00e3o de valores em um conjunto [&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-409","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>Boxplots - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial fornece uma breve introdu\u00e7\u00e3o aos boxplots, incluindo uma defini\u00e7\u00e3o formal e v\u00e1rios 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\/bigodes-de-caixa\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Boxplots - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial fornece uma breve introdu\u00e7\u00e3o aos boxplots, incluindo uma defini\u00e7\u00e3o formal e v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-30T11:20:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boite-a-moustaches.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\/bigodes-de-caixa\/\",\"url\":\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/\",\"name\":\"Boxplots - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-30T11:20:46+00:00\",\"dateModified\":\"2023-07-30T11:20:46+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial fornece uma breve introdu\u00e7\u00e3o aos boxplots, incluindo uma defini\u00e7\u00e3o formal e v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Gr\u00e1ficos de caixa\"}]},{\"@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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