All Courses Lean Six Sigma Black Belt - Study Guide 59 Lessons All Courses Lean Six Sigma Black Belt - Full Course (45) 4.8 average rating 233 Lessons All Courses Lean Six Sigma Black Belt - Certification Exam (64) 4.8 average rating 1 Lessons All Courses Lean Six Sigma Black Belt - Flash Cards 5 Lessons All Courses Lean Six Sigma Black Belt - Practice Exam 1 Lessons