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Question 20 (2 points) Insurance companies use special (actuarial) tables to estimate the remaining lifespan of their customers. Below is the regression model estimating the additional years left for American males in the United States, according to a National Vital Statistics Report. The regression equation is: Years Left = 60.2 - 0.635 (Age) R-Squared ( R2("version":"1.1","math":"R^2"] ) = 96% (a) What is the slope? Question 20 options: -0.635 C 60.2 C -543 C 0.635 Question 21 (2 points) Insurance companies use special (actuarial) tables to estimate the remaining lifespan of their customers. Below is the regression model estimating the additional years left for American males in the United States, according to a National Vital Statistics Report. The regression equation is: Years Left = 60.2 - 0.635 (Age) R-Squared ( R2("version":"1.1","math":"R^2"} ) = 96% b) Find the correlation coefficient between the age and the life years left. Question 21 options: C Approx. - 0.37 C Approx. 0.46 C Approx. 0.98 C Approx. - 0.98