The table that follows shows the weekend gross ticket sales for the top 20 movies during the week of August 4, 2006:⁹

                                                                                                                     Weekend
                                                                                                                        Gross
Movie                                                                                                        ($ millions)
1.Talladega Nights: The Ballad of Ricky Bobby.............................................. $47.0
2. Barnyard........................................................................................................15.8
3. Pirates of the Caribbean: Dead Man’s Chest................................................11.0
4. Miami Vice..................................................................................................... 10.2
5. The Descent................................................................................................... 8.9
6. John Tucker Must Die.................................................................................... 6.2
7. Monster House............................................................................................... 6.1
8. The Ant Bully.................................................................................................. 3.9
9. You, Me and Dupree...................................................................................... 3.6
10. The Night Listener........................................................................................ 3.6
11. The Devil Wears Prada................................................................................ 3.0
12. Lady in the Water......................................................................................... 2.7
13. Little Man..................................................................................................... 2.5
14. Superman Returns...................................................................................... 2.2
15. Scoop...........................................................................................................1.8
16. Little Miss Sunshine.................................................................................... 1.5
17. Clerks II...................................................................................................... 1.3
18. My Super Ex-Girlfriend............................................................................... 1.2
19. Cars............................................................................................................ 1.1
20. Click.............................................................................................................0.8

a. Draw a stem and leaf plot for the data. Describe the shape of the distribution. Are there any outliers?
b. Construct a dotplot for the data. Which of the two graphs is more informative? Explain.