Questões de Concurso Público FUB 2022 para Estatístico
Foram encontradas 120 questões
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julgue o item seguinte.
Se i ≠ j, a covariância entre πi e πj é negativa.
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![](https://s3.amazonaws.com/qcon-assets-production/images/provas/87429/266a846b1f6517329464.png)
julgue o item seguinte.
O valor esperado de Ȳ é igual a μ.
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![](https://s3.amazonaws.com/qcon-assets-production/images/provas/87429/266a846b1f6517329464.png)
julgue o item seguinte.
A variância de Ȳ é igual a
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![](https://s3.amazonaws.com/qcon-assets-production/images/provas/87429/266a846b1f6517329464.png)
julgue o item seguinte.
Se o estimador da variância populacional for então o valor esperado de S é igual a V.
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![](https://s3.amazonaws.com/qcon-assets-production/images/provas/87429/e55f1911e85a957aabc3.png)
![](https://s3.amazonaws.com/qcon-assets-production/images/provas/87429/266a846b1f6517329464.png)
julgue o item seguinte.