2.148 Nunavut. Refer to the previous exercise and Figures 2.32 and 2.33.

1. (a) Do you think that Nunavut is an outlier?

2. (b) Make a residual plot for these data. Comment on the size of the residual for Nunavut. Use this information to expand on your answer to part (a).

3. (c) Find the value of the correlation without Nunavut. How does this compare with the value you computed in part (b) of the previous exercise?

4. (d) Write a short paragraph about Nunavut based on what you have found in this exercise and the previous one.