Data Scientist Analytics & Experimentation Interview Questions
Practice 863 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."
Design experiment for homepage tab replacement
Experiment Design: Replacing a Homepage Tab and Measuring User + Ecosystem Impact Assume today is 2025-09-01. Roblox plans to replace an existing home...
Decide whether to sell both products
Decision Rule: Offer Classic and Vegan Burgers Concurrently? Context You are evaluating whether a burger chain should sell a vegan burger alongside th...
Challenge and validate assumptions
Vegan-Burger Launch: Assumptions at Risk, Validation, Sensitivity, and Experiment Plan Background You are evaluating the launch of a vegan burger acro...
Design and analyze batching algorithm experiment
Experiment Design: New Order-Batching/Dispatch Algorithm (Aug–Sep 2025) You are tasked with designing and analyzing a geo-experiment for a new order-b...
Design a feed ads A/B test with guardrails
Experiment Design: Insert One Extra Ad Every 8 Organic Posts in Main Feed Context You want to increase ad load by inserting one additional ad for ever...
Design and analyze notification pinning experiment
Experiment Design: Pinning Accounts With Active Notifications in the Account Switcher Context You are evaluating a UI feature that pins accounts with ...
Design Messenger spam experiment with clustering
Experiment Design: Spam-Detection Algorithm for Messenger You are evaluating a new spam-detection algorithm that routes suspected spam into a separate...
Design causal measurement without randomization
Causal Study Design: Notification Feature Impact on 7-Day Retention Context: A new notification feature shipped on 2025-06-01. Randomized rollout was ...
Diagnose Traffic Allocation in A/B Test Results
Diagnose Traffic Allocation in A/B Test Results Scenario A consumer app ran an A/B test that changed a call-to-action (CTA) button from green (control...
Investigate Causes of Increased Driver Wait Time
Investigate Causes of Increased Driver Wait Time Scenario DoorDash observed that driver (Dasher) wait time at restaurants spiked last week versus the ...
Design A/B Test for Short-Video Recommendation Algorithm
Design A/B Test for Short-Video Recommendation Algorithm A/B Test: New Short‑Video Recommendation Algorithm Context You are evaluating a new recommend...
Explain P-Value and Errors in A/B Testing
Explain P-Value and Errors in A/B Testing A/B Test Design and Analysis: Core Concepts Scenario You are advising on the design and analysis of an A/B t...
Calculate Profitability and Break-Even for Lyft Partnership Campaign
Calculate Profitability and Break-Even for Lyft Partnership Campaign Credit Card Unit Economics and Lyft Co‑Marketing Break‑Even Context You are evalu...
Measure Harmful Content Impact with Key Metrics
Measure Harmful Content Impact with Key Metrics Scenario A social-media platform needs to quantify how serious harmful or inappropriate user-generated...
Determine Key Metrics for Spend-Tracker Launch Decision
Determine Key Metrics for Spend-Tracker Launch Decision A/B Decision Framework: Spend-Tracker Feature Context A fintech app ran an A/B test (Test vs. ...
Launch Sticker-Reply Feature in Facebook Groups?
Launch Sticker-Reply Feature in Facebook Groups? Launch Decision: Sticker-Reply Feature for Facebook Groups Context You are evaluating whether to laun...
Determine Value of Prioritizing Accounts by Unread Notifications
Determine Value of Prioritizing Accounts by Unread Notifications Feature Validation: Ordering Multiple Accounts by Unread Notifications Context Users ...
How to analyze Simpson's paradox
A marketing team wants to evaluate a new email campaign. Two email versions, A and B, were tested over two weeks in two cities: San Francisco and New ...
Resolve Simpson’s paradox in A/B email test
A marketing team tests a new email campaign. They run an experiment for two weeks in two cities (SF and NY) comparing Email A vs Email B. They observe...
Evaluate Notification-Based Account Ranking
A product allows users to switch among multiple accounts. Today, the account switcher ranks accounts by most recent visit. The product team wants to c...