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Experimento aleatório.

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Espaço amostral

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Evento certo

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Probabilidade

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Evento impossível

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Considerado um número que mede a possibilidade de ocorrência de um evento:

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Questionário

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Consulta a anuários e revistas

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Entrevistas por telefone

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Entrevistas pessoais

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Observação

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Há diversos métodos para coletar dados primários citados, abaixo, exceto:

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A série estatística representada é:

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Comentários