Meta Analytics & Experimentation Interview Questions
Meta Analytics & Experimentation interview questions target your ability to turn ambiguous product problems into rigorous, measurable experiments and clear business recommendations. What’s distinctive is the emphasis on experimentation as an operational engine: interviewers probe experimental design (unit of randomization, interference, power and MDE), metric definition and guardrails, causal reasoning, and how model or ranking changes feed back into metrics. Expect case-style analytical execution rounds where you diagnose metric shifts, design A/B tests, identify biases or data-quality issues, and justify trade-offs between short-term engagement and long-term value. For interview preparation, practice end-to-end problem solving: define primary and guardrail metrics, compute power, choose randomization units, and explain data requirements and potential pitfalls. Refresh core statistics and experimentation concepts, and be ready to show SQL/Python fluency for data exploration while communicating results succinctly to product and engineering partners. Behavioral storytelling about ownership and collaboration is also evaluated, so prepare concise examples that tie technical impact to product outcomes.

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"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
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Diagnose a sudden KPI drop
On 2025-09-01, a global social network observes a 10% decline in daily Likes per DAU versus the prior 4-week same-weekday baseline. Walk me through a ...
Choose alternatives when randomization fails
Causal Impact of an Autoloaded Feature Without Clean Randomization Context You need to estimate the causal effect of a new autoloaded feature that is ...
Identify non-table data for feature demand
Evaluate Demand for a New "Group Call" Feature Using Non-Table Data and Experiments Context You are a data scientist evaluating whether to invest in a...
Design and evaluate P2P payments in messaging
P2P Payments in a Large Messaging App — Design, Measurement, and Risk Plan You are a data scientist at an at-scale messaging platform evaluating a Ven...
Increase posts receiving one comment
Goal: Increase the share of group posts that receive ≥1 comment within 48 hours. Assume today is 2025-09-01. (a) Precisely define the primary metric a...
Diagnose rising account switching and falling actives
Diagnostic Plan: Account Switching Up, Active Users Down Context You observed a sudden pattern: the number of users switching accounts increased, whil...
Design an A/B test for pinned-unread feature
Experiment Design: Evaluating a Pinned-Unread Chat Feature Context You are evaluating a new messaging feature that pins chats with unread messages to ...
Decide event notification launch via experiments
Meta plans a new notification that tells you when friends are going to an event. Determine whether to launch it. 1) Design the experiment accounting f...
Measure network effects and spillovers via experiments
Experiment design under network interference: direct and indirect effects Context You are evaluating a new social feature that can produce network spi...
Design and analyze end-to-end A/B test
A/B Test Design: Higher-Quality Friend Recommendations Context: You are updating the Friend Recommendation ("People You May Know") ranking to prioriti...
Diagnose sudden KPI drop with segmentation
Production Incident: 10% Drop in Daily Likes (DAU Flat) on 2025-09-01 You are investigating a 10% day-over-day drop in daily Like actions on a global ...
Diagnose a sudden KPI drop and validate causes
A core KPI (comments_per_DAU) suddenly drops materially. Outline a structured root-cause analysis and validation plan. a) Scoping and sanity: Quantify...
Design and validate ad model launch
You are on the Ads team and just trained a new ad recommendation model meant to replace the current model in production. Design a rigorous plan to dec...
Build dashboard; diagnose engagement–purchase gap
Build a Comprehensive Dashboard for the Shopping Tab (Organic Only) Context Assume the Shopping tab is an in-app surface for organic product discovery...
Define success metrics beyond time spent
Calling Feature Launch: Success Metrics, Retention, Guardrails, and Decision Rubric Context: You are launching a new feature in a consumer calling pro...
Design experiments and observational alternatives
Stories Consumption Analysis and Causal Inference Tasks Context: You are a data scientist evaluating why Stories consumption appears higher on Faceboo...
Compare two ad insertion strategies
Ad Insertion Strategies for a 100-Post Feed You are evaluating two ad-insertion strategies on a feed with 100 posts: - Strategy A (Stochastic): Indepe...
Design and justify unread-accounts pinning experiment
Experiment Design: Pin Unread Accounts at Top of Account Switcher Context You propose a feature for users who own multiple accounts (same person_id): ...
Expected impressions per user under random assignment
Random Assignment of Ad Impressions Across Users In an A/B experiment, Y ad impressions are served uniformly at random across X distinct users. Each i...
Interpreting confidence intervals to choose a treatment
Feed-ranking Tweaks: Interpret Confidence Intervals and Choose a Treatment You ran online experiments for three feed-ranking tweaks. The primary metri...