how does the state of north carolina compare to the other 49 states? this file state demographics contains data for all states except north carolina*. question 1. find a regression model for life expectancy using the other 3 variables as explanatory variables. enter the coefficients of each explanatory variable below (use 6 decimal places). -238470 coefficient for murder rate .038215 coefficient for hs graduation .000097 coefficient for income question 2. what percent of the variation in life expectancy is explained by the differences in the explanatory variables? (express as a percent; use 1 decimal place) x % question 3. use the multiple regression model to estimate the life expectancy in north carolina if the values of north carolina's explanatory variables are murder rate