How to Know if Scrum is Right for Your Project

After years of studying the problem, I've come up with a foolproof way to determine if Scrum is right for a given project.
Here it is:
Pick a number from 1 - 9.
Multiply by 3.
Add 3, then multiply by 3 again.
You will get your answer by adding the two digits together and then using that as a key to look up the right process for you in this list:

1. RUP
2. Waterfall
3. Feature-Driven Development
4. Extreme Programming
5. Spiral
6. EVO
7. Kanban
8. Crystal
9. Scrum
10. Team Software Process