Data Scientist Analytics & Experimentation Interview Questions
Practice 895 real Analytics & Experimentation interview questions for Data Scientist roles. From companies including Meta, Capital One, DoorDash, Uber, TikTok.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Diagnose a 20% retail revenue drop
E-commerce Revenue Drop Diagnosis Case Context Week T net revenue is down 20% versus the prior 4-week moving-average baseline. You have weekly e-comme...
Design an experiment with marketplace network effects
Causal Experiment Design for a Two‑Sided Marketplace with Interference You are designing a causal experiment for a new networked product in a two‑side...
Diagnose and reduce cold-food refund costs
This question evaluates data science competencies in analytics, experimentation, and causal inference, including cost modeling, diagnostic analysis, p...
Prove friends outperform unconnected; design metrics, observational analysis, and rollout experiment
Question You are given two event tables, info_stream_views (one row per viewer–post view, with viewer_id, post_id, relationship ∈ {friend, unconnected...
Design and analyze email deliverability experiment
This question evaluates a data scientist's competency in experimental design, causal inference, sequential testing (frequentist and Bayesian), instrum...
Measure Super Bowl ad impact with causal design
Super Bowl National TV Ad: Incrementality Measurement Plan Context: Your consumer app ran a single 30-second national Super Bowl TV spot. Design a pla...
Diagnose a 10% DAU drop
On-Call Incident: Yahoo Mail DAU Down 10% on 2025-09-01 Assume all times are UTC, the product is global, and DAU is the canonical daily active user me...
Design and Evaluate a Home Carousel
Pinterest is considering adding a horizontally scrollable carousel at the top of the Home feed, similar to Instagram Stories. The carousel may surface...
Compute DID estimate and pretrend flag
You are given three equal-length arrays describing observations from a panel-like dataset: - period[i] ∈ {0,1}: 0 = pre period, 1 = post period - trea...
Diagnose Search Issues with Relevant Metrics and Solutions
Brand-Name Search: Diagnosing Relevance and Safety Issues Brand clients report that when users search for their own brand name, the platform surfaces ...
Assess Success Criteria for Bike-Courier Delivery Launch
Assessing a Bike-Courier Delivery Launch DoorDash plans to launch a bike-courier delivery option and wants to assess whether, where, and how to roll i...
Evaluate Optimal Jogging Routes Feature with A/B Testing
Evaluate an Optimal Jogging Routes Feature with A/B Testing Google Maps is considering a feature that recommends optimal jogging routes, such as safe,...
Evaluate Financial Feasibility of Ride-Sharing Service
Evaluate Financial Feasibility of a Ride-Sharing Service You manage a ride-sharing service and must analyze pricing, costs, capacity, and competitive ...
Analyze Impact of Customer Reviews on Sales Performance
Analyze Impact of Customer Reviews on Sales Performance A product team wants to understand how customer reviews influence sales. You have product-leve...
Investigate Super Bowl Ad Impact on User Sign-Ups and Revenue
Coinbase Super Bowl QR Ad: Sign-Ups, Revenue Impact, and Next Steps A crypto exchange airs a Super Bowl commercial featuring a QR code that awards a $...
Design experiment for bike delivery feature
You work on a delivery marketplace (customers, merchants, couriers). The company is considering launching a “bike delivery” capability in a subset of ...
Define metrics for new market expansion success
DoorDash new-market expansion analytics prompt covering marketplace health metrics, demand and supply diagnostics, guardrails, 6-month evaluation plan...
Evaluate AI-assisted ad creation
This question evaluates a candidate's competence in product analytics, causal inference, experimentation design, metric definition, and monitoring for...
Investigate Harassment Surge and Mitigation
Question You work on content integrity. Your monthly moderation analysis shows that the Harassment violation type increased sharply in the most recent...
Evaluate UberEATS priority delivery and membership
This question evaluates a data scientist's competency in pricing strategy, marketplace economics, causal experimentation, metric selection, and estima...