Scrum PSK-I Exam - Topic 2 Question 10 Discussion

Actual exam question for Scrum's PSK-I exam

Question #: 10
Topic #: 2

True or False: Little's Law is used to forecast a Scrum Team's output.

ATrue

BFalse

Show Suggested Answer

Suggested Answer: B

Little's Law establishes a relationship between three flow metrics: Work in Progress (WIP), Cycle Time, and Throughput. It provides insights into how changes in one metric affect the others in a stable system.

Little's Law is used to understand and manage flow within a system but is not a forecasting tool for output or future performance. It assumes a stable and predictable system where the input and output rates are consistent.

Why Not True?

Forecasting requires variability, historical data, and often different statistical models. While Little's Law supports system predictability and capacity planning, it does not directly project future Scrum Team outputs or delivery dates.

Thus, Little's Law helps teams analyze and optimize flow but is not used for forecasting.

by Curtis at Jul 13, 2025, 11:09 AM

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Caitlin

5 months ago

I always thought it was relevant, but maybe I was wrong.

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Nickolas

5 months ago

False! Little's Law is for understanding flow, not Scrum teams.

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Carin

5 months ago

Little's Law is about queuing theory, not Scrum.

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Denny

6 months ago

Wait, are we sure about that? I thought it applied somehow.

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Veronika

6 months ago

Totally agree, it's not used for output forecasting!

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Amber

6 months ago

I thought Little's Law was relevant for understanding flow, but I can't recall if it applies specifically to Scrum teams.

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Wendell

6 months ago

I feel like there was a practice question about this, and it said Little's Law isn't used for forecasting in Agile.

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Lavonna

7 months ago

I remember discussing Little's Law in class, but I’m not sure if it directly applies to Scrum output.

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Annmarie

7 months ago

I think Little's Law is more about queuing systems than Scrum, so I’m leaning towards False.

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Desirae

7 months ago

Ah yes, I remember now! Little's Law is all about the relationship between cycle time, throughput, and work in progress. It's definitely applicable to forecasting a Scrum Team's output. I'll mark True.

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Dorian

7 months ago

I'm a bit confused about this one. I don't think Little's Law is directly related to Scrum, but I could be wrong. I'll have to guess and hope for the best.

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Willie

7 months ago

I know Little's Law has to do with queuing theory and flow, so it makes sense that it could be used to forecast a Scrum Team's output. I'll go with True on this one.

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Angella

7 months ago

Hmm, I remember learning about Little's Law in my project management class, but I can't recall the exact details of how it's used. I'll have to review my notes to be sure.

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Rosina

8 months ago

I'm pretty sure Little's Law is used for forecasting, but I'm not 100% certain if it's specifically for Scrum Teams. I'll need to think this through carefully.

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Clare

9 months ago

I disagree, I believe it's False because Little's Law is more about the relationship between lead time, work in progress, and throughput, not specifically for forecasting a Scrum Team's output.

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