The fertility rate (average number of children per woman) in a country can be used to predict the life
expectancy of people in that country. The regression equation in 2012 was = 85 –5.14x , where y is
the life expectancy in years and x is the number of children per woman. The correlation is 0.806.
What percent of the variation in life expectancy is explained by the regression model with fertility
rate as the predictor?
(A) 5.14%
(B) 65.0%
(C) 80.6%
(D) 85.0%
(E) There is not enough information to answer this question.
marvins-underground-k-12
(Marvins-Underground-K-12)
#1