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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.

Questions
860
Companies
81
Updated
06.09.2026
860 Questions 81 Companies06.09.2026
PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
Role
Chime logo
Chime
Hard
Data Scientist

Design and Analyze A/B Test for Recommendation Widget

Scenario You are designing and analyzing an online A/B test for launching a new recommendation widget in a consumer-facing product (e.g., mobile and w...

Analytics & Experimentation
70
0
129 people solved
Aug 4, 2025
PayPal logo
PayPal
Hard
Data Scientist

Design A/B Test to Measure PayPal Cashback Value

Scenario PayPal plans to offer a targeted cashback incentive for purchases at Walmart. You need to design an A/B test that convincingly demonstrates t...

Analytics & Experimentation
1
0
32 people solved
Aug 4, 2025
Intuit logo
Intuit
Easy
Data Scientist

Diagnose KPI anomaly and evaluate promotion/A-B test

You are a Data Scientist supporting a TurboTax product team. You are asked to handle three related analytics tasks. 1) KPI anomaly investigation A das...

Analytics & Experimentation
8
0
82 people solved
Aug 1, 2025
PayPal logo
PayPal
Easy
Data Scientist

How to evaluate a new homepage feature

Question PayPal is planning to launch a new homepage feature (for example, a new CTA module, personalized content, or a redesigned layout) and wants t...

Analytics & Experimentation
5
0
44 people solved
Feb 15, 2026
Meta logo
Meta
Medium
Data Scientist

Evaluate new-product notification feature

A marketplace team is considering building a feature that notifies buyers when new products relevant to their interests are listed. How would you dete...

Analytics & Experimentation
2
0
17 people solved
Jan 5, 2026
Meta logo
Meta
Medium
Data Scientist

How investigate a brand-ad spend drop?

Meta has a video ads product with two ad types: - Direct ads: optimized for in-platform actions - Brand ads: users click the video ad and are sent to ...

Analytics & Experimentation
2
0
14 people solved
Jan 3, 2026
Coinbase logo
Coinbase
Medium
Data Scientist

Design Identity-Trust A/B Test

You are interviewing for a Data Scientist role on an Identity & Trust team at a consumer product company. The team wants to launch a feature that stre...

Analytics & Experimentation
3
0
25 people solved
Feb 13, 2026
Roblox logo
Roblox
Hard
Data Scientist

Compute DID estimate and pretrend flag

You are given three equal-length arrays describing observations from a panel-like dataset: - period[i] ∈ {0,1}: 0 = pre period, 1 = post period - trea...

Analytics & Experimentation
4
0
38 people solved
Nov 24, 2025
Meta logo
Meta
Medium
Data Scientist

Design "Restaurants You May Know" Recommendation Algorithm

Food-Delivery: "Restaurants You May Know" Recommendations Context You are working on a food-delivery app with a personalized home page. The team wants...

Analytics & Experimentation
34
0
115 people solved
Jul 12, 2025
Airbnb logo
Airbnb
Medium
Data Scientist

Define Success Metrics and Experiment Plan for Product Development

Scenario You are in a product-planning session and must define success criteria before development begins for a new change to the core booking funnel ...

Analytics & Experimentation
26
0
60 people solved
Jul 12, 2025
Airtable logo
Airtable
Easy
Data Scientist Locked

Diagnose metric anomalies and evaluate new algorithm

Context You work on a consumer product that includes an AI calling feature (users trigger calls; the system places AI-assisted calls). The team monito...

Analytics & Experimentation
3
0
35 people solved
Oct 14, 2025
Pinterest logo
Pinterest
Medium
Data Scientist

Design and assess a video-pin increase experiment

Question Pinterest wants to increase the share of video pins surfaced in the Home Feed (e.g., raising video share from a ~30% baseline toward a 45% ta...

Analytics & Experimentation
6
0
97 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Analyze your favorite app and improve it

Pick your favorite consumer app. a) Explain its monetization model and top two competitors with key differentiators. b) As CEO, define three north-sta...

Analytics & Experimentation
1
0
27 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Define and validate an airline profitability metric

Airline Route Profitability Metric with Quality Guardrails Context You need a single, decomposable primary metric for airline route profitability that...

Analytics & Experimentation
3
0
51 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Compute capacity, staffing trade-offs, and break-even

Capacity, Cost, and Staffing Planning for a 2‑Week Sprint Context - You manage a 3‑person dev‑tools team. Each line of code must be coded, tested, and...

Analytics & Experimentation
4
0
41 people solved
Oct 13, 2025
Google logo
Google
Medium
Data Scientist

Establish causality: commute playlist and driving speed

A lawyer worries that listening to a "Commute" playlist in a mobile app makes users drive faster. As the DS: a) Define the population, unit of analysi...

Analytics & Experimentation
2
0
47 people solved
Oct 13, 2025
Shopify logo
Shopify
Medium
Data Scientist

Design robust experiment for ambiguous core change

You must evaluate a core product change that likely has network effects (e.g., a matchmaking tweak in a large online game with 8M DAU). Define the pri...

Analytics & Experimentation
8
0
58 people solved
Oct 13, 2025
OneMain Financial logo
OneMain Financial
Medium
Data Scientist Locked

Maximize credit card portfolio profit

Credit Card Approval and Profit Optimization (12‑month horizon) Context You receive 10,000 credit card applications per month. Applicants are grouped ...

Analytics & Experimentation
5
0
55 people solved
Oct 13, 2025
Gemini logo
Gemini
Medium
Data Scientist

Design offline backtest and online experiment

You are given an ACH transaction-level dataset to identify and control fraud and will present a plan. Today is 2025-09-01. Deliverables - Offline anal...

Analytics & Experimentation
1
0
22 people solved
Oct 13, 2025
Snapchat logo
Snapchat
Hard
Data Scientist

Design and analyze a banner A/B test

A/B Test Design: Home-Page Banner You are deciding whether to add a home-page banner in a consumer app. Design and analyze the A/B test end-to-end. As...

Analytics & Experimentation
4
0
39 people solved
Oct 13, 2025
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