
Call:
lm(formula = f, data = d)

Residuals:
    Min      1Q  Median      3Q     Max 
-8.4641 -2.8896 -0.5014  3.3435 12.5429 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)    
(Intercept)   3.4874    12.1785   0.286    0.776    
gdp           3.8097     0.8314   4.583 4.08e-05 ***
population    0.1907     0.4558   0.418    0.678    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 4.375 on 42 degrees of freedom
Multiple R-squared:  0.3611,	Adjusted R-squared:  0.3307 
F-statistic: 11.87 on 2 and 42 DF,  p-value: 8.205e-05

