TikTok Data Scientist Analytics & Experimentation Interview Questions
Practice 43 real Analytics & Experimentation interview questions for Data Scientist roles at 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."
Plan DS approach for biker delivery project
You are a Data Scientist supporting a “biker” (delivery rider) product/project for a food-delivery platform. An interviewer gives only a short descrip...
Design A/B Test for Cost-Per-Conversion Efficiency Analysis
Design A/B Test for Cost-Per-Conversion Efficiency Analysis Multi-Arm A/B Test: Comparing Cost-Per-Conversion Across Channels Scenario You need to com...
Diagnose Decline in User Engagement and Experience Quality
Diagnose Decline in User Engagement and Experience Quality Product Metrics Deep-Dive and Causal Inference (TikTok) Context You are a data scientist wo...
Improve TikTok's Algorithm for Diverse Content Discovery
Product Feedback and Experimentation: Diverse Content Discovery You are a frequent TikTok user interviewing for a Data Scientist role focused on analy...
Prove conversion ads value via incrementality
This question evaluates a candidate's competency in causal inference and experimentation design for advertising measurement, covering metrics and attr...
Analyze Trade-off Between DAU Growth and Ad Revenue
Analyze Trade-off Between DAU Growth and Ad Revenue Analytics Case: DAU vs. Ad Revenue Trade-off in a Consumer Video App Context You are a data scient...
Investigate Traffic Distribution Impact on Retention Decrease
A/B Test Diagnostics: Traffic Distribution and Retention Drop An A/B test changed a button color from green in control to red in treatment. The primar...
Track Key Metrics for Apple's New Phone Launch
Product Analytics Dashboard for a New Phone Launch You are a data scientist at a short-form video or social platform. Apple has launched a new phone a...
Analyze Negative Reviews' Impact on Coupon Repurchase Rate
Measuring Negative Reviews' Impact on Coupon Repurchase Management wants to understand how negative customer reviews affect the probability that a use...
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 promo anomaly and design risk guardrails
During a 2‑hour 11.11 flash sale (11:00–13:00), an account A123 places 80 orders in 10 minutes using 12 payment cards across 5 device_ids; 9 orders sh...
Diagnose metric drop in Ads Manager
Investigate a 15% Drop in Ad-Creation Completion Rate Context On 2025-06-10, your Ads Manager dashboard shows a 15% relative decrease in the ad-creati...
Causally measure traffic reduction effectiveness
This question evaluates skills in causal inference and quasi-experimental design, including specifying estimands, choosing RD and staggered DiD approa...
Investigating Correlation Between Ad Visits and Reports
Scenario You are on the analytics team at a large social media platform. A positive correlation has been observed between the number of page visits to...
Troubleshoot Sudden KPI Drop After Recent Product Release
Troubleshoot Sudden KPI Drop After Recent Product Release Scenario A product dashboard shows a sudden drop in a key business KPI immediately after a n...
Design an experiment for exploratory recommendations
Experiment Design for Exploratory Recommendations You are launching an online A/B test for a new recommendation algorithm. The goal is to increase use...
Measure Billboard Campaign Effectiveness and Engagement Quantification
Measure Billboard Campaign Effectiveness and Engagement Quantification A consumer social platform places billboards in train stations to drive traffic...
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...
Test 15s to 60s video length change
Experiment Design: Change Default Creator Video Length from 15s to 60s Context You are designing an A/B test for a short‑form video platform with two ...
Measure Ads Manager effectiveness end-to-end
This question evaluates a candidate's competency in experimental design, causal inference, metric definition, telemetry instrumentation, and heterogen...