Run a linear regression on the file Health Data, where population

density per square mile is the independent variable, and Dr per 100000 is the dependent variable. Be sure to check the options at the bottom of the linear regression dialog box.
a. Discuss the strength of the correlation between the two variables. 
b. Explain the meaning of the y-intercept.
c. Evaluate the residual plot and discuss your interpretation.
d. What proportion of the variance in Dr per 100000 is explained by population density? What does this mean in practical terms?
e. Why do you suspect this is not a good model to predict Dr per 100000 using population density as the predictor variable? Provide evidence for your claim.