Metrics question
It's back in 2011 and you're thinking of launching Facebook Events. What metrics would you set up as a goal for your team?
- Meta
- Metrics
- Hard
Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.
Start a mock interview on this question · Mock interview from a job description
What this question tests
Metric design at product launch: setting a north star and supporting metrics for a brand new social feature in 2011.
How to approach it
- Clarify the goal of Facebook Events at launch, helping users discover and coordinate real world gatherings with friends.
- State a north star metric, such as number of events created that reach a minimum RSVP threshold.
- Break it into a funnel: event creation rate, invites sent per event, RSVP rate, and actual attendance.
- Add guardrails like spam event creation rate and user complaints about irrelevant invites.
- Confirm with the interviewer whether the goal is discovery, coordination, or both, since 2011 Facebook was still adding real time features.
What a strong answer includes
- Chooses a north star tied to real usage, like weekly events with 3 or more confirmed attendees, over a vanity metric like total events created.
- Separates the invite funnel from actual attendance, since RSVPs alone do not prove Events is useful.
- Flags spam and low quality event creation as an early risk given 2011's lighter content moderation.
Common mistakes
- Optimizing purely for events created, which is easy to inflate with spam or duplicate events.
- Ignoring the invite to attendance funnel and stopping analysis at RSVP count.
Likely follow-up questions
- How would you detect spam or fake events early?
- How would this differ for public events versus private friend gatherings?
More metrics questions
- How would you measure the success of Facebook Likes?Meta · Metrics · Medium
- How would you measure improvements made to Facebook messenger?Meta · Metrics · Easy
- Imagine you are the PM in charge of Reactions on Facebook - the new way to interact with posts by using “love”, “haha”, “wow”, “sad”, and “angry” reactions. What would success look like in terms of number of non-like reactions per post at launch and how do you come up with this? Would this number differ by reaction? Why or why not?Meta · Metrics · Hard
- You launched a new signup flow to encourage new users to add more profile information. A/B test results indicate that the % of people that added more information increased by 8%. However, 7 day retention decreased by 2%. What do you do?Google · Metrics · Hard
- Define the metrics for YouTube search.Google · Metrics · Medium
- You are the PM of Instagram app. The MAU has been constant but DAU has declined. What will you do?Meta · Metrics · Medium
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