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Defina um diagrama de dispersão e explique sua utilidade na análise de dados.

Ask by Martin Medina. in Angola
Jan 05,2025

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Um **diagrama de dispersão** é um gráfico que mostra como duas variáveis quantitativas se relacionam. Cada ponto representa um par de valores dessas variáveis. Ele ajuda a identificar se as variáveis estão relacionadas, a detectar tendências e outliers, a entender a distribuição dos dados e a preparar modelos estatísticos.

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Um diagrama de dispersão é uma representação gráfica que exibe a relação entre duas variáveis quantitativas. Cada ponto no gráfico representa uma observação, com uma variável no eixo x e a outra no eixo y. Essa visualização permite identificar tendências, padrões e correlações, além de ajudar a detectar outliers, o que é útil em diversas áreas como estatística, ciências sociais e negócios. Ao analisar dados com um diagrama de dispersão, é comum identificar se existe alguma correlação entre as variáveis, seja positiva, negativa ou nenhuma. Um ponto de atenção é não confundir correlação com causalidade: duas variáveis podem estar correlacionadas sem que uma cause efetivamente a outra. Portanto, sempre que visualizar um diagrama, mantenha um olhar crítico e evite tirar conclusões precipitadas!

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