Professional Scrum Master I (PSM I) — Question 101

A Product Owner wants advice from the Scrum Master about estimating work in Scrum. What guidance should a Scrum Master give? (Choose the best answer.)

Answer options

• A. Product Backlog items must be estimated in story points.
• B. Estimates are made by the people doing the work.
• C. Estimates must be in relative units.
• D. Scrum forbids estimating.
• E. Estimates are made by the Product Owner, but are best checked with the Developers.

Correct answer: B

Explanation

The correct answer is B because in Scrum, it is the team members who are doing the actual work who should provide estimates, ensuring the estimates are realistic and grounded in their knowledge and experience. Option A is incorrect as story points are not mandatory; option C is misleading since relative units can vary, and option D is false as estimating is allowed in Scrum. Option E is also incorrect because while the Product Owner may have input, the Developers should primarily provide the estimates.