[{"_1":2,"_299":-5,"_300":-5},"loaderData",{"_3":4,"_31":32},"root",{"_5":6,"_28":29,"_30":-5},"registerModalConfig",{"_7":8,"_15":16},"blockedConfig",{"_9":10,"_15":16,"_17":18,"_21":22,"_24":25},"answerQuestion",{"_11":12,"_13":14},"subtitle","Crie sua conta gratuita e utilize todos os nossos recursos de questões disponiveis","title","Para responder, cadastre-se gratuitamente","customBlockedUI",true,"defaultRegister",{"_11":19,"_13":20},"Crie sua conta gratuita e utilize todos os nossos recursos disponíveis","Cadastre-se gratuitamente","imageSearch",{"_11":19,"_13":23},"Para buscar por imagem, cadastre-se gratuitamente","questionAnswer",{"_11":26,"_13":27},"Crie sua conta gratuita e utilize todos os nossos recursos disponíveis para responder","Para ver a resposta, cadastre-se gratuitamente","url","https://prouniversitario.com/exercicios/7b8741e2-80b4-4212-bb0b-a86a901952ac?video=true","user","pages/questions/show/index",{"_33":34,"_35":36,"_37":36,"_38":39,"_103":104,"_179":180,"_51":243,"_284":285,"_295":296,"_297":298},"comments",[],"hasVideoHash",false,"isAiGenerated","question",{"_40":41,"_42":41,"_43":44,"_45":46,"_77":78,"_97":41,"_98":99,"_100":101,"_102":16},"correctOptionId","","difficulty","id","7b8741e2-80b4-4212-bb0b-a86a901952ac","metadata",{"_47":48,"_73":74,"_75":76},"pd",{"_49":50,"_51":52,"_53":54,"_61":62,"_63":64,"_65":16,"_66":67,"_68":16,"_69":70,"_71":72},"area","Outros","tags",[],"subjects",[55],{"_43":56,"_57":58,"_59":60},682147,"name","Econometria","alias","econometria","materialId","135396652","answerCount",1,"isIndexable","mainSubject",{"_43":56,"_57":58,"_59":60},"isIndexableSEO","materialFormat","Text","studentDegreeLevel","Graduate","source","PD","externalId","135402938","options",[79,85,89,93],{"_43":80,"_81":82,"_83":84},"360a35ce-667e-4837-aea6-995eb0d97db0","label","A","text","Nenhuma das alternativas está correta.",{"_43":86,"_81":87,"_83":88},"f0be1e83-2d05-4231-b432-160ad015966c","B","R^2 = 0,96",{"_43":90,"_81":91,"_83":92},"b86b6957-02d9-49fd-ad60-074aa3d55adf","C","R^2 = 0,90",{"_43":94,"_81":95,"_83":96},"c1ebd981-9ee4-478c-955f-a6d6d3b5c0e1","D","R^2 = 0,99","solution_explanation","statement","Dada a tabela abaixo com duas variáveis x e y, calcule o coeficiente de determinação da reta R^2.","status","pending_classification","hasRelatedVideo","relatedVideos",[105],{"_106":107,"_125":126,"_51":141,"_158":159,"_175":176},"content",{"_43":108,"_57":109,"_110":-5,"_111":112,"_113":114,"_115":-5,"_45":116,"_119":120,"_121":120,"_122":-5,"_123":124},"6a6eec4d-603e-4fa9-a981-824fac44dc50","Econometria - 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Sobre o papel dos três grandes centros do poder mundial - Estados Unidos, União Europeia e Japão - afirma-se, corretamente:

",[198],{"_43":143,"_57":58,"_59":60,"_144":145,"_146":147,"_119":148,"_121":148,"_45":199,"_123":155},{"_150":151,"_152":151,"_153":154},{"_40":201,"_42":41,"_43":202,"_77":203,"_97":219,"_98":220,"_51":221},"00070a12-c9b5-456c-933f-a34188008f5b","4338ca26-1c49-4238-a5bb-9fde60d727ca",[204,207,210,213,215],{"_43":205,"_81":82,"_83":206},"a8d201c8-34f3-4067-b893-8fd92b3b8d28","I e III.",{"_43":208,"_81":87,"_83":209},"aaf010cc-cba2-421c-bfd5-9b6365a5af5e","I.",{"_43":211,"_81":91,"_83":212},"e0106468-f68b-44f7-bcf3-62cd776e468b","III.",{"_43":201,"_81":95,"_83":214},"I e II.",{"_43":216,"_81":217,"_83":218},"e3fbf328-7642-46c8-9194-fd73fd78506d","E","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:",[222],{"_43":143,"_57":58,"_59":60,"_144":145,"_146":147,"_119":148,"_121":148,"_45":223,"_123":155},{"_150":151,"_152":151,"_153":154},{"_40":225,"_42":41,"_43":226,"_77":227,"_97":41,"_98":239,"_51":240},"93b74a3c-668c-46db-9214-6f38b94fa3a9","e799b6de-9300-4d42-8737-ea78ba87f3d5",[228,231,233,236],{"_43":229,"_81":82,"_83":230},"6ca67477-0ef2-4fa0-8991-a76d9fbac3b8","Séries temporais.",{"_43":225,"_81":87,"_83":232},"Causal.",{"_43":234,"_81":91,"_83":235},"069b39e8-04b2-4756-a161-f70cb955bba7","Qualitativa.",{"_43":237,"_81":95,"_83":238},"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