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."
Assess card transactions and plan risk strategy
Assess card transactions and plan risk strategy Card Fraud Decisions and Cold‑Start Risk Strategy Context You are designing the first version of card ...
How would you A/B test first trade rate?
Coinbase wants to increase the rate at which newly signed-up retail users place their first trade. Design an A/B test for a product change intended to...
Design metrics and experiment for stolen-post detection
Evaluates skills in metrics design, diagnostic analysis, and online experiment methodology within Analytics & Experimentation for a Data Scientist pos...
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...
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...
Evaluate the Success of Instagram Checkout
Evaluating Instagram Checkout Instagram Checkout allows users to discover products, add to cart, pay, and manage post-purchase flow without leaving In...
Diagnosing a drop in total ads revenue
Diagnosing a Sharp Drop in Global Ads Revenue You are a data scientist supporting a large ads marketplace. Last week, global ads revenue declined shar...
Evaluate the Health of Facebook Groups
Group Health Metrics and Threaded Comments Experiment You are a Data Scientist working on a platform with Groups ranging from small hobby clubs to ver...
Measuring and mitigating fake news on Facebook
Measuring and Mitigating Fake News Under Reviewer Constraints Policy teams need an overnight view of fake-news prevalence on the platform, but only a ...
Assess Customer Value with Varied Contract Terms and Costs
Subscription Network Service: Customer Value and Contract Terms A subscription network-service provider wants to assess unit economics and portfolio i...
Design Experiment to Test New Hashtag Recommender Algorithm
Experiment Design: Testing a New Hashtag Recommender A social app shows hashtag recommendations to users while they compose posts. A new algorithm is ...
Choose Effective Graphs for Data Exploration
Exploratory Data Visualization: Choosing the Right Charts You are performing exploratory data analysis on a dataset with a mix of categorical and nume...
Investigate Conversion Drop: Metrics, Analyses, Techniques Explained
Investigating a Conversion Drop After a Feature Release A new feature was released on an e-commerce platform. Shortly after release, overall checkout ...
Determine Weekly Break-Even Point for Diaper Service
Diaper Service Unit Economics and Inventory Flow A weekly subscription diaper-delivery and cleaning service operates with these parameters: - Customer...
Analyze Factors Behind 20% Retail Revenue Decline
Analyze a 20 Percent Retail Revenue Decline A retailer reports a 20 percent decline in revenue compared with a prior comparable period. Assume revenue...
Balance Customer Satisfaction with Fraud Prevention: Key Metrics to Track
Balancing Customer Satisfaction and Fraud Prevention In a consumer app with payments, Product wants minimal friction for legitimate users while Risk w...
Analyze Profit Decline: Data Collection and Hypothesis Testing
Analyze Profit Decline: Data Collection and Hypothesis Testing You manage a coffee shop whose profits have recently declined. You need to diagnose the...
Determine Metrics for Group-Video Calling Experiment Success
Determine Metrics for Group-Video Calling Experiment Success You are the data scientist for a large consumer messaging app that currently supports one...
Implement Clustered Sampling to Mitigate Network Effects in Testing
Implement Clustered Sampling to Mitigate Network Effects in Testing You are planning an A/B test for a new recommendation algorithm in a networked pro...
Investigate Yahoo Mail's 10% DAU Decline Causes
Investigate Yahoo Mail's 10% DAU Decline Causes Yahoo Mail suddenly reports a 10% decline in daily active users. You need to investigate whether the d...