PMI Agile Certified Practitioner PMI ACP · Free Practice Question Medium
Question 81
Because of the difficulty in making absolute estimates regarding task completion, agile teams use which of the following methods to estimate more accurately?
- A Use value-based priority
- B Use comparative estimates or relative sizing
- C Base absolute estimates on hours, not days
- D Estimate how many user stories can be done in a day
Reveal correct answer
Correct answer: B
Explanation
Agile teams use comparative estimates or relative sizing, which uses a relative unit called story points, to estimate more accurately. Rather than trying to predict absolute time frames, estimating in terms of relative size (as opposed to absolute) allows the estimates to be made more usefully. A team can only finish so many user stories in an iteration. The other responses are incorrect: user stories are not mapped to days of an iteration; estimates are made by the relative size of user stories, not by hours; value-based prioritization is how the product backlog is organized, not how user stories are estimated.Discussion
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