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."
Single Queue vs Multiple Queues — Service Design
Bank Branch Queue Design: Single Queue Versus Multiple Queues A bank branch has c identical tellers. Customers arrive approximately as a Poisson proce...
Evaluate 'Job You May Be Interested In' Recommender
Evaluating a LinkedIn Jobs Recommender Upgrade LinkedIn is upgrading the algorithm that recommends jobs to members across surfaces such as the Jobs ta...
Visualize Price Impact on Demand and Profit Trends
Price Sensitivity and Profit Curves You are modeling a single network service with a per-unit price p offered to a large market. Customer demand decre...
Explain App Growth Strategy and Key Performance Metrics
App Growth Strategy and Key Performance Metrics In an onsite Analytics and Experimentation interview, you must explain a favorite digital consumer app...
Test If Initial Video Uploads Are Shorter Than Later Ones
Hypothesis Test: Are Users' First Video Uploads Shorter? You are given event-level data for a video-sharing product. Each record represents a publishe...
Calculate Profit-Maximizing Price and Validate with Additional Data
Profit-Maximizing Price with Costs and a Demand Curve You sell a single software product at one price P. You are given fixed cost F, variable cost as ...
Design "Restaurants You May Know" Recommendation Algorithm
Design "Restaurants You May Know" Recommendation Algorithm A food-delivery app wants to launch a personalized home-page module called "Restaurants You...
Evaluate Impact of Targeting Ads to High-Intent Users
Evaluate Impact of Targeting Ads to High-Intent Users A product manager proposes allocating all ad impressions to users predicted to be high intent, a...
Evaluate Impact of Bicycle Deliveries on Efficiency and Costs
Evaluates marketplace analytics for launching bicycle delivery in dense urban areas. Strong answers define business goals, success and guardrail metri...
Determine Group Call Feature Need and Evaluation Methods
Determine Need and Evaluation Methods for Group Calling You are the product analyst for a messaging platform considering a group-calling feature. You ...
Investigate Causes of Cold Meal Deliveries
Investigate and Reduce Cold Food Deliveries A delivery service is receiving customer complaints that meals arrive cold. You need to investigate the ro...
Measure Impact of Updated Rider ETA Algorithm
Measure the Impact of an Updated Rider ETA Algorithm A ride-hailing company updated the rider ETA prediction shown before a rider requests a trip. The...
Evaluate Impact of New Roblox Homepage Tab
Evaluate the Impact of a New Roblox Homepage Tab Roblox plans to replace an existing homepage tab with a new one. The team needs to measure whether th...
Plan parking demand for a retail store
A retailer similar to Best Buy is considering building a customer parking lot next to one of its stores. You are asked to determine what data you woul...
Evaluate and safely deploy a CVR model online
You have built a new CVR (conversion rate) prediction model for an RTB bidding system at a DSP. Offline metrics improved (e.g., lower log loss and hig...
Evaluate an email test with confounding
Evaluate an Email Test With Confounding A marketing team tested Email A and Email B across two cities, San Francisco and New York, over two weeks. The...
Design and evaluate a new group call feature
Product / DS Case: Group Calls for Messenger Groups Messenger has Groups but does not currently support group calls. You are evaluating whether to bui...
How to test account ranking change
This question evaluates a data scientist's competency in causal inference, experimentation design, metrics selection, and observational analysis using...
Improve biker delivery with metrics and levers
Case: Optimize Delivery Performance for Bike Couriers You are a Data Scientist at a food-delivery marketplace such as DoorDash or Uber Eats. Your team...
Assess Demand for Group Video Chat
This question evaluates skills in product analytics, causal inference from observational data, demand estimation, survey design, and executive-level s...