Diferença entre estatística descritiva e inferencial

A estatística descritiva trabalha o resumo de dados.

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Estatística descritiva Organiza os dados e usa medidas resumo, gráficos e tabelas.

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Inferência estatística diz respeito a generalização de resultados para uma população

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A Inferência se apoia na teoria das probabilidades, mas as técnicas estatísticas permitem chegar a conclusões com um grupo bem pequeno.

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Para a inferência ser válida precisamos conhecer os processos de amostragem

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Amostras devem ser aleatórias para a validade dos resultados da inferência

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Estatística, probabilidade e amostragem frequentemente aparecem em concursos públicos

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Quer ficar por dentro de tudo do mundo dos concursos? Acesso o site de estatística para concurso

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