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National birth rates (births per 1000) may be influenced by the average national life expectancy in years and the national literacy rate (% of population
National birth rates (births per 1000) may be influenced by the average national life expectancy in years and the national literacy rate (% of population that can read and write). Data for 49 countries were obtained and the accompanying output shows the regression results. If an additional explanatory variable were added to the model, what would happen to R2? Click the icon to view the regression results. Regression results O A. R could stay the same, increase, or decrease. SUMMARY OUTPUT O B. R would always increase. Regression Statistics O C. RZ would always decrease. Multiple R 0.8574 R Square 0.7351 O D. R could stay the same or decrease, but it could not increase. Adjusted R Square 0.7231 O E. R could stay the same or increase, but it could not decrease. Standard Error 5.2819 Observations 47.0000 ANOVA df SS MS Regression 2.0000 3407.3155 1703.6577 Residual 44.0000 1227.5465 27.8988 Total 46.0000 4634.8620 Standard Coefficients Error t Stat Intercept 65.5486 3.9541 Life Expectancy -0.3568 0.0683 Literacy Rate -0.2317 0.0423
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