Consider the following to answer the question(s) below:
National birth rates (births per 1,000) 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 regression results follow.
-How much of the variation in the National Birth Rate can be explained by the regression model?
A) 73.51%
B) 0.7231 %
C) 0.7351%
D) 61.07%
E) 85.74%

Question

Consider the following to answer the question(s) below:
National birth rates (births per 1,000) 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 regression results follow. 
-How much of the variation in the National Birth Rate can be explained by the regression model?
A) 73.51% 
B) 0.7231 % 
C) 0.7351% 
D) 61.07% 
E) 85.74%

Quizplus · Accepted Answer

The correct answer is A) 73.51% because this value represents the percentage of the variation in the National Birth Rate that can be explained by the regression model, typically indicated by the R-squared value in statistical analysis.

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