{"id":10862,"date":"2025-07-15T13:34:50","date_gmt":"2025-07-15T13:34:50","guid":{"rendered":"https:\/\/functiontranslator.com\/bdvar\/"},"modified":"2021-02-25T17:18:14","modified_gmt":"2021-02-25T17:18:14","slug":"dvar","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/dvar\/","title":{"rendered":"BDVAR"},"content":{"rendered":"<h2>Introdu\u00e7\u00e3o \u00e0 Fun\u00e7\u00e3o BDVAR no Excel e DVAR no Google Planilhas<\/h2>\n<p>A fun\u00e7\u00e3o BDVAR no Microsoft Excel e a fun\u00e7\u00e3o DVAR no Google Planilhas s\u00e3o utilizadas para calcular a vari\u00e2ncia de uma amostra de um banco de dados que atenda a determinados crit\u00e9rios. Essas fun\u00e7\u00f5es s\u00e3o extremamente \u00fateis em an\u00e1lises estat\u00edsticas, pois permitem ao usu\u00e1rio quantificar a dispers\u00e3o nos dados de uma amostra selecionada.<\/p>\n<h2>Sintaxe e Exemplos<\/h2>\n<p>Embora similares, as fun\u00e7\u00f5es apresentam ligeiras varia\u00e7\u00f5es em seus usos nas duas plataformas:<\/p>\n<ul>\n<li><strong>Excel (BDVAR):<\/strong>\n<pre><code>BDVAR(banco_de_dados, campo, crit\u00e9rios)<\/code><\/pre>\n<ul>\n<li><code>banco_de_dados<\/code>: Refer\u00eancia do conjunto de dados que constitui o banco de dados.<\/li>\n<li><code>campo<\/code>: Especifica a coluna usada na fun\u00e7\u00e3o, podendo ser o \u00edndice num\u00e9rico da coluna ou o nome da mesma entre aspas.<\/li>\n<li><code>crit\u00e9rios<\/code>: Intervalo que cont\u00e9m as condi\u00e7\u00f5es que os registros devem atender.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Google Planilhas (DVAR):<\/strong>\n<pre><code>DVAR(banco_de_dados, campo, crit\u00e9rios)<\/code><\/pre>\n<ul>\n<li><code>banco_de_dados<\/code>: Intervalo que abriga os dados.<\/li>\n<li><code>campo<\/code>: O nome ou o \u00edndice num\u00e9rico da coluna sobre a qual ser\u00e1 calculada a vari\u00e2ncia.<\/li>\n<li><code>crit\u00e9rios<\/code>: Intervalo das c\u00e9lulas que cont\u00eam as condi\u00e7\u00f5es estabelecidas.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Exemplo Pr\u00e1tico 1: Calculando a Vari\u00e2ncia de Vendas<\/h2>\n<p>Consideremos o c\u00e1lculo da vari\u00e2ncia das vendas de televisores em uma loja de eletr\u00f4nicos durante os meses de ver\u00e3o. Suponhamos o seguinte banco de dados:<\/p>\n<table>\n<tr>\n<th>M\u00eas<\/th>\n<th>Produto<\/th>\n<th>Vendas<\/th>\n<\/tr>\n<tr>\n<td>Junho<\/td>\n<td>Televisor<\/td>\n<td>300<\/td>\n<\/tr>\n<tr>\n<td>Julho<\/td>\n<td>Televisor<\/td>\n<td>450<\/td>\n<\/tr>\n<tr>\n<td>Agosto<\/td>\n<td>Televisor<\/td>\n<td>400<\/td>\n<\/tr>\n<tr>\n<td>Junho<\/td>\n<td>R\u00e1dio<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>Julho<\/td>\n<td>R\u00e1dio<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>Agosto<\/td>\n<td>R\u00e1dio<\/td>\n<td>200<\/td>\n<\/tr>\n<\/table>\n<p>Para calcular a vari\u00e2ncia das vendas de televisores nos meses de ver\u00e3o, a f\u00f3rmula seria:<\/p>\n<pre><code>=BDVAR(A1:C7, \"Vendas\", A9:B10)<\/code><\/pre>\n<p>Onde <code>A1:C7<\/code> \u00e9 o banco de dados, <code>\"Vendas\"<\/code> \u00e9 o campo, e <code>A9:B10<\/code> \u00e9 uma \u00e1rea de crit\u00e9rios configurada como:<\/p>\n<table>\n<tr>\n<th>Produto<\/th>\n<th>Resultado<\/th>\n<\/tr>\n<tr>\n<td>Televisor<\/td>\n<td>Todas as entradas<\/td>\n<\/tr>\n<\/table>\n<h2>Exemplo Pr\u00e1tico 2: Vari\u00e2ncia de Notas<\/h2>\n<p>Um professor deseja calcular a vari\u00e2ncia das notas dos alunos que obtiveram mais de 70 pontos em uma prova de matem\u00e1tica. O banco de dados \u00e9 organizado da seguinte forma:<\/p>\n<table>\n<tr>\n<th>Estudante<\/th>\n<th>Nota<\/th>\n<\/tr>\n<tr>\n<td>Ana<\/td>\n<td>65<\/td>\n<\/tr>\n<tr>\n<td>Jo\u00e3o<\/td>\n<td>80<\/td>\n<\/tr>\n<tr>\n<td>Maria<\/td>\n<td>90<\/td>\n<\/tr>\n<tr>\n<td>Pedro<\/td>\n<td>75<\/td>\n<\/tr>\n<tr>\n<td>Lucas<\/td>\n<td>60<\/td>\n<\/tr>\n<\/table>\n<p>A f\u00f3rmula no Excel seria:<\/p>\n<pre><code>=BDVAR(A1:B6, \"Nota\", A8:A9)<\/code><\/pre>\n<p>Com <code>A1:B6<\/code> representando o banco de dados, <code>\"Nota\"<\/code> a coluna das notas, e <code>A8:A9<\/code> contendo os crit\u00e9rios:<\/p>\n<table>\n<tr>\n<th>Nota<\/th>\n<th>Resultado<\/th>\n<\/tr>\n<tr>\n<td>&gt;70<\/td>\n<td>Notas acima de 70<\/td>\n<\/tr>\n<\/table>\n<p>Essa fun\u00e7\u00e3o ent\u00e3o calcularia a vari\u00e2ncia das notas de Jo\u00e3o, Maria e Pedro, fornecendo uma an\u00e1lise sobre a dispers\u00e3o das notas dos estudantes que foram bem na prova.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Calcula a vari\u00e2ncia com base numa amostra das entradas de base de dados selecionadas<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[449],"tags":[],"class_list":["post-10862","post","type-post","status-publish","format-standard","hentry","category-base-de-dados"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fun\u00e7\u00e3o DVAR (BDVAR) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o DVAR (BDVAR) do Excel. 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