#> # A tibble: 142 × 13
#> country continent r.squared adj.r.squared sigma
#> <fctr> <fctr> <dbl> <dbl> <dbl>
#> 1 Afghanistan Asia 0.948 0.942 1.223
#> 2 Albania Europe 0.911 0.902 1.983
#> 3 Algeria Africa 0.985 0.984 1.323
#> 4 Angola Africa 0.888 0.877 1.407
#> 5 Argentina Americas 0.996 0.995 0.292
#> 6 Australia Oceania 0.980 0.978 0.621
#> # ... with 136 more rows, and 8 more variables:
#> # statistic <dbl>, p.value <dbl>, df <int>, logLik <dbl>,
#> # AIC <dbl>, BIC <dbl>, deviance <dbl>, df.residual <int>
Com esse data frame em mãos, podemos começar a procu ...