{"id":10997,"date":"2025-07-15T13:34:50","date_gmt":"2025-07-15T13:34:50","guid":{"rendered":"https:\/\/functiontranslator.com\/dist-normallog\/"},"modified":"2021-02-25T17:24:03","modified_gmt":"2021-02-25T17:24:03","slug":"lognormdist","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/lognormdist\/","title":{"rendered":"DIST.NORMALLOG"},"content":{"rendered":"

A fun\u00e7\u00e3o LOGNORMDIST<\/strong> no Microsoft Excel e a fun\u00e7\u00e3o DIST.NORMALLOG<\/strong> no Google Planilhas s\u00e3o empregadas para calcular a distribui\u00e7\u00e3o log-normal de um conjunto de dados. Este tipo de distribui\u00e7\u00e3o \u00e9 relevante quando os valores dos dados, ao serem transformados pelo logaritmo, seguem uma distribui\u00e7\u00e3o normal.<\/p>\n

Entendendo a Sintaxe das Fun\u00e7\u00f5es<\/h2>\n

A sintaxe para essas fun\u00e7\u00f5es varia ligeiramente entre Excel e Google Planilhas:<\/p>\n

    \n
  • Excel:<\/strong> LOGNORMDIST(x; media; desv_padr)<\/code><\/li>\n
  • Google Planilhas:<\/strong> DIST.NORMALLOG(x; media; desv_padr; acumulado)<\/code><\/li>\n<\/ul>\n

    Onde:<\/p>\n

      \n
    • x<\/code> \u00e9 o valor da vari\u00e1vel cuja distribui\u00e7\u00e3o log-normal est\u00e1 sendo calculada.<\/li>\n
    • media<\/code> refere-se \u00e0 m\u00e9dia dos logaritmos dos dados.<\/li>\n
    • desv_padr<\/code> \u00e9 o desvio padr\u00e3o dos logaritmos dos dados.<\/li>\n
    • acumulado<\/code>, exclusivo para Google Planilhas, \u00e9 um valor l\u00f3gico que define o tipo de resultado:
      VERDADEIRO<\/code> para fun\u00e7\u00e3o de distribui\u00e7\u00e3o acumulada, FALSO<\/code> para a fun\u00e7\u00e3o de densidade de probabilidade.<\/li>\n<\/ul>\n

      Aplica\u00e7\u00f5es Pr\u00e1ticas<\/h2>\n

      A distribui\u00e7\u00e3o log-normal \u00e9 comumente aplicada em cen\u00e1rios onde os valores n\u00e3o assumem n\u00fameros negativos e est\u00e3o distribu\u00eddos de maneira assim\u00e9trica, sendo particularmente \u00fatil em an\u00e1lises financeiras e de qualidade.<\/p>\n

      Exemplo 1: An\u00e1lise do Crescimento de Investimentos<\/h2>\n

      Imagine que voc\u00ea queira calcular a probabilidade de um investimento superar um determinado valor ao final de um per\u00edodo, considerando que os logaritmos dos valores dos retornos se distribuem normalmente.<\/p>\n

        Valor Final Esperado (x): $150,000 M\u00e9dia dos logaritmos (media): 11.5 Desvio padr\u00e3o dos logaritmos (desv_padr): 0.5 <\/code> <\/pre>\n
      No Excel, a f\u00f3rmula seria:<\/p>\n
        =1 - LOGNORMDIST(150000; 11.5; 0.5) <\/code> <\/pre>\n
      No Google Planilhas, voc\u00ea utilizaria:<\/p>\n
        =1 - DIST.NORMALLOG(150000; 11.5; 0.5; VERDADEIRO) <\/code> <\/pre>\n
      Este c\u00e1lculo indica a probabilidade de o investimento exceder $150,000.<\/p>\n
      Exemplo 2: C\u00e1lculo da Vida \u00datil de Equipamentos<\/h2>\n
      Em contextos de manuten\u00e7\u00e3o de equipamentos, pode ser \u00fatil calcular a probabilidade de um equipamento durar mais que um certo per\u00edodo.<\/p>\n
        Vida \u00datil Esperada (x) em anos: 8 M\u00e9dia dos logaritmos (media): 1.7 Desvio padr\u00e3o dos logaritmos (desv_padr): 0.3 <\/code> <\/pre>\n
      No Excel:<\/p>\n
        =1 - LOGNORMDIST(8; 1.7; 0.3) <\/code> <\/pre>\n
      No Google Planilhas:<\/p>\n
        =1 - DIST.NORMALLOG(8; 1.7; 0.3; VERDADEIRO) <\/code> <\/pre>\n
      Este resultado mostra a probabilidade do equipamento operar por mais de 8 anos.<\/p>\n","protected":false},"excerpt":{"rendered":"
      Devolve a distribui\u00e7\u00e3o normal logar\u00edtmica cumulativa<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[444],"tags":[],"class_list":["post-10997","post","type-post","status-publish","format-standard","hentry","category-compatibilidade"],"acf":[],"yoast_head":"\nFun\u00e7\u00e3o LOGNORMDIST (DIST.NORMALLOG) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o LOGNORMDIST (DIST.NORMALLOG) do Excel. 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