Metrics question
Facebook events RSVPs went up by 20%. what would you do?
- Meta
- Metrics
- Medium
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What this question tests
Diagnostic thinking when a metric moves unexpectedly, distinguishing genuine growth from noise or a bug.
How to approach it
- Confirm the number is real, check for tracking bugs, bot traffic, or a change in how RSVPs are counted.
- Segment the 20 percent increase by event type, region, and user cohort to see if it is broad or concentrated.
- Check for a known cause, a product change, a viral event, a holiday, or a marketing push, before assuming organic growth.
- If it looks genuine, assess whether it is healthy, are these real attendances or low commitment 'interested' clicks.
- Decide next steps, double down with more promotion of high RSVP event types, or investigate a quality concern if attendance later lags RSVPs.
- Define a follow up metric, actual check in or attendance rate, to confirm the RSVP spike converts to real engagement.
What a strong answer includes
- Starts with data validation instead of assuming the spike is real and good.
- Segments by cause, e.g. a single viral event category versus platform wide lift, before reacting.
- Distinguishes RSVP volume from RSVP quality, noting that attendance rate is the metric that actually matters.
- Proposes a concrete next action, e.g. interview a sample of new RSVP users to understand intent.
Common mistakes
- Assuming a metric increase is automatically good news.
- Not checking for tracking errors or bot activity first.
- Stopping at 'investigate' without naming what to look at.
Likely follow-up questions
- How would you distinguish a bug from real user behavior change.
- What would make you concerned despite the increase.
- How would you decide whether to invest more in this feature.
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More questions from Meta
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 9: Prove it paid off: outcomes, economics, and pricing
- Chapter 2: Data fluency: SQL, logs, and reading the truth yourself
- Chapter 14: Get the job: the AI PM interview loop