What is the duration of videos for Six Sigma and Lean Six Sigma online courses by 6sigmastudy?

• Six Sigma Green Belt: around 4 hours of videos split into 40 units
• Six Sigma Black Belt: around 6 hours of videos split into 65 units
• Six Sigma Yellow Belt: around 1 hour of videos split into 2 units
• Lean Six Sigma Black Belt: around 7 hours of videos split into 71 units
• Lean Six Sigma Green Belt: around 3.5 hours of videos split into 40 units