Data Scientist Analytics & Experimentation Interview Questions
Practice 897 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."
Prove friends outperform unconnected; design experiments and metrics
Assessing Whether Friend Content Is "More Social" Than Unconnected Content Context and Goal You are given two platform logs: info_stream_views (every ...
Estimate free-trial conversion probability
Context A product offers a free trial. You are asked: “What is the probability of conversion for a group of people who started a free trial?” Data (as...
Design experiment for ads in chat with budgets
Context After launching an AI chat feature, the company wants to show ads inside the chat experience (you are interviewing for an Ads/Monetization dat...
Present an A/B test project review
Onsite Project Review: Analyze and present an A/B test Before the onsite, you completed a take-home project analyzing an A/B test (you can assume typi...
Evaluate an ads algorithm change
Your ads team has developed a new ad-ranking algorithm for feed delivery. The new algorithm is expected to improve ad relevance and monetization, but ...
Evaluate smart cart idea with hypotheses and experiment
Instacart partners with a local grocery store to introduce a “smart cart” in the physical store. The smart cart UI lets shoppers: 1) search/browse ite...
Evaluate a free-trial A/B test
Scenario A marketing team ran an A/B test offering a free 1-month trial to users. - Control (A): Standard offer (no free month) - Treatment (B): Free ...
Diagnose Google Meet Disconnections and Assess Business Impact
Scenario Enterprise clients report that Google Meet calls frequently disconnect. Task Outline an end-to-end analysis plan to diagnose why calls drop a...
Optimize Credit-Card Strategy: Pricing, Limits, and Target Segments
Credit-Card Business Optimization Case Context You are evaluating a new credit-card product. You have (or will estimate) per-segment cost, revenue, an...
How would you evaluate pixel-issue notifications?
Context An ads platform supports an Ads Pixel (a tracking script) that advertisers install on their websites/apps to send back conversion events (e.g....
Derive insights and improve complaint resolutions
You work on customer experience analytics for an e-commerce furniture retailer. You have 3 data tables related to customer complaints and how they wer...
Determine Success Metrics for Biker Dasher Program Launch
Scenario A delivery platform is evaluating a "Biker Dasher" program to enable couriers to use bicycles in dense urban areas. Tasks 1. State the primar...
Design and Analyze A/B Test for Recommendation Widget
Scenario You are designing and analyzing an online A/B test for launching a new recommendation widget in a consumer-facing product (e.g., mobile and w...
Design Experiments to Measure Promotion Scheduling Impact
Scenario A food delivery marketplace is releasing flexible promotion scheduling (e.g., time-of-day deals, merchant-funded discounts, and broader eligi...
Evaluate Impact of $1 Fee on Fast-Food Profitability
Experiment Design: $1 Delivery-Fee Surcharge on Unprofitable Restaurants Scenario About 10% of fast-food restaurants on the platform are unprofitable....
Determine Channel Performance with Additional Metrics Needed
Compute Expected Purchases and Revenue by Channel Context A company sells a product through three channels: online, phone, and email. For each channel...
Investigate Causes of Driver WOW Score Drop
Investigating a 10% QoQ Drop in Driver WOW (Satisfaction) Context Assume WOW is a standardized driver satisfaction metric collected via in-app surveys...
Diagnose KPI anomaly and evaluate promotion/A-B test
You are a Data Scientist supporting a TurboTax product team. You are asked to handle three related analytics tasks. 1) KPI anomaly investigation A das...
Evaluate new-product notification feature
A marketplace team is considering building a feature that notifies buyers when new products relevant to their interests are listed. How would you dete...
How investigate a brand-ad spend drop?
Meta has a video ads product with two ad types: - Direct ads: optimized for in-platform actions - Brand ads: users click the video ad and are sent to ...