If you're looking for EVEN MORE ADDITIONAL practice, College Board has the 2012 Practice Exam posted on their exam info page:
- 2012 Statistics Practice AP Exam (Warning: Large PDF which includes instructions, etc!) | (Backup link, just in case their site goes down)
- MC begins on page 23 (key on page 86)
- FR begins on page 69 (scoring guides begin on page 88)