Sen Lin, PrepPass Founder · Verified against ASQ Six Sigma Black Belt (CSSBB) · How we review
Lean Six Sigma Black Belt exam topics — the 5 content areas by weight
The Lean Six Sigma Black Belt exam is built from 5 weighted content areas. Focus your time where the weight is. Each area below links to a free study chapter and practice questions. Weights reflect the official content outline.
Define & Team Leadership
20%Measure
20%Analyze
22%Improve & DOE
20%Control & SPC
18%Ready to test yourself?
Drill 20+ free Lean Six Sigma Black Belt practice questions across every content area, then sit a full timed mock exam — no signup required.
Content-area weights reflect the official Lean Six Sigma Black Belt content outline. Confirm current details with ASQ Six Sigma Black Belt (CSSBB). Study aid, not a substitute for the official material. Last updated: August 2026.