According to The World Almanac and Book of Facts 2004, the debt per capita for the years 1900-2001 gives the following scatterplot: Regression output gives the equation of the regression lines as: Predicted (Debt per capita) = -2,231,226 + 1128 (Debt Year) with R2=98.8% a. What is the response variable? b. What is the correlation coefficient r? c. What is the slope of the regression line? Explain in context what the slope of the line means.