Data Scientist Analytics & Experimentation Interview Questions
Practice 860 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."
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...
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...
Determine Metrics to Measure Free-Trial Impact on Subscriptions
A/B Test: Free Trial Offer Impact on Subscription Behavior Scenario You are analyzing a randomized A/B test in which free users are offered a free tri...
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 Optimal Budget Allocation for Maximum Profit
Scenario You have three user-acquisition platforms: Live Phone Calls, Social Media Ads, and Email Campaigns. You are given a total marketing budget B....
Design Identity & Trust Experiment
You are a data scientist at a financial or crypto platform. The product team wants to launch an Identity & Trust feature that adds stronger identity v...
Measure Relevant Feed Success
LinkedIn changes the Home Feed default experience from showing all content to showing only content predicted to be relevant to each viewer. How would ...
Optimize amusement park pricing, capacity, and testing
Context You are interviewing for a Data Scientist role focused on analytics and experimentation. An amusement park is considering launching a paid Fas...
Diagnose 10–11% usage drop across geos
US usage is down 10% and Mexico is down 11%. List plausible confounders (seasonality, pricing, outages, marketing mix, competitor moves, feature rollo...
Design experiments for marketplace balance
You propose a new supplier prioritization (ranking) policy intended to increase order completion in a two-sided marketplace with known interference be...
Estimate shuttle impact with robust causal design
You have individual-level data from 1,000+ sites, several hundred of which adopt a free employee shuttle at different times. Design a causal analysis ...
Design video-ads experiment and handle null results
You are launching a new video-ad format. Design an end-to-end A/B test to evaluate it against the current ad format. Be precise: 1) Define exposure an...
Evaluate Miami Ultrafast impact on orders
Instacart launched an Ultrafast delivery feature in Miami two months ago. You have weekly orders per geo for the past 52 weeks; Miami is treated from ...
Decompose and optimize delivery operational costs
Decompose Operational Cost per Order and Optimize Without Harming Experience Context: You are evaluating operational cost per order for a two-sided fo...
Diagnose Sunday Miami same‑day outages
Marketplace stability case: same‑day disablement on Sunday afternoons (Miami) Context Instacart offers two fulfillment modes: - Same‑day delivery (rea...
Design an interference-robust A/B test for monetization
A/B Test Design: New Tipping UI on Creator Posts Context: You are launching a new tipping UI on creator (PGC/OGC) posts to increase creator monetizati...
Design a creator posting-frequency experiment
You’re on the Creator Growth (PGC) team of a short‑video platform. Product proposes a push/email nudge expected to raise creators’ weekly posting freq...
Define market-only rider experience metrics
Market-only Rider Experience Metrics and Market Balance Index (MBI) You are designing a metric suite for a rides marketplace where "rider experience" ...
Design an A/B test for ML model launch
Feed Ranker A/B Test Design and Powering You are replacing the current ranker with a new model in a feed. Baseline CTR is 2.0%. You expect a +5% relat...
Design incrementality test for TikTok ads
Design an Incrementality Test to Prove TikTok Ads Drive Lift in Conversions You are an advertiser who wants to causally prove that TikTok ads increase...