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Observando os dados da tabela, qual a reta de regressão pode ser usada para estabelecer um modelo de regressão linear usando o método dos mínimos quadrados?

Qual a reta de regressão?

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Sobre o papel dos três grandes centros do poder mundial - Estados Unidos, União Europeia e Japão - afirma-se, corretamente:

",[201],{"_43":146,"_56":57,"_58":59,"_147":148,"_149":150,"_122":151,"_124":151,"_45":202,"_126":158},{"_153":154,"_155":154,"_156":157},{"_40":204,"_42":41,"_43":205,"_76":206,"_100":221,"_101":222,"_50":223},"00070a12-c9b5-456c-933f-a34188008f5b","4338ca26-1c49-4238-a5bb-9fde60d727ca",[207,210,213,216,218],{"_43":208,"_80":81,"_82":209},"a8d201c8-34f3-4067-b893-8fd92b3b8d28","I e III.",{"_43":211,"_80":86,"_82":212},"aaf010cc-cba2-421c-bfd5-9b6365a5af5e","I.",{"_43":214,"_80":90,"_82":215},"e0106468-f68b-44f7-bcf3-62cd776e468b","III.",{"_43":204,"_80":94,"_82":217},"I e II.",{"_43":219,"_80":98,"_82":220},"e3fbf328-7642-46c8-9194-fd73fd78506d","II e III.","No modelo linear simples, os estimadores MQO são βˆ = Σ(xi−x̄)(yi−ȳ)/Σ(xi−x̄)² e αˆ = ȳ − βˆ x̄. O item I expressa corretamente αˆ; o item II apresenta a forma canônica de βˆ; já o item III costuma omitir os desvios em torno das médias, ficando incorreto. Logo, somente I e II estão corretos.","Na forma ajustada do modelo de regressão, são, respectivamente, os estimadores de mínimos quadrados ordinários de α e β. Pode-se afirmar que:",[224],{"_43":146,"_56":57,"_58":59,"_147":148,"_149":150,"_122":151,"_124":151,"_45":225,"_126":158},{"_153":154,"_155":154,"_156":157},{"_40":227,"_42":41,"_43":228,"_76":229,"_100":41,"_101":241,"_50":242},"93b74a3c-668c-46db-9214-6f38b94fa3a9","e799b6de-9300-4d42-8737-ea78ba87f3d5",[230,233,235,238],{"_43":231,"_80":81,"_82":232},"6ca67477-0ef2-4fa0-8991-a76d9fbac3b8","Séries temporais.",{"_43":227,"_80":86,"_82":234},"Causal.",{"_43":236,"_80":90,"_82":237},"069b39e8-04b2-4756-a161-f70cb955bba7","Qualitativa.",{"_43":239,"_80":94,"_82":240},"6e71b453-d68b-4155-af7c-cf52373c61c7","Simulação.","

Este modelo de previsão assume inicialmente um modelo teórico que está conformado entre uma variável dependente (a ser estimada) e outra independente. Diante disso, assinale a alternativa que apresenta método descrito acima:

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Comentários