Question 22 (1 point) 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 - 0.642 (Age) R-Squared ( R2 ) = 95.9% (a) What is the slope? O 0.642 O-0.642 60.2 O-60.42