The table below gives the average life expectancy (in years) of a person from a certain country based on various years of birth. Here, a represents the year of birth after 1990, and y represents the life expectancy. Use Excel to find the best fit linear regression equation. Round the slope and intercept to three decimal places. X y 0 77.031 77.135 2 77 490 3 77.517 4 77.678 5 77.993 6 78.247 7 78.564 8 78.890 Previous