Using the values from the scatterplot, calculate the r values. 15 points Belgium Bulgaria Denmark =, How were you able to determine the rvalues were positive? b Use the r values to compare the strengths of the associations for each of these countries? 4. Find the slope for Bulgaria's trendline. What does the slope of the line tell you about Bulgaria's life expectancy? Be specific! 10 points 5. Find the y-intercept of the trendline for Bulgaria. What does the y-intercept tell you about Bulgaria's life expectancy? Be specific! 10 points 6. Use the linear model for Belgium. 15 points Predict Belgium's life expectancy at birth in the year 2025. Show your work. b What kind of prediction did you use, interpolation or extrapolation? Explain your answer. 7. Use the linear model for Denmark. 20 points Estimate Denmark's life expectancy at birth in the year 2000. Show your work. b Find the error (residual) for the answer for part a