Twitter

Histogram of Tweets

LinkedIn

Data Science Skills

Facebook

Page With No Likes

Tesla

Unfinished Parts

NY Times

Laptop vs. Mobile Viewership

Coin Fairness Test

BCG Gamma

Precision/Recall Tradeoff

Average Post Hiatus (Part 1)

Microsoft

Teams Power Users

JPMorgan

Two Consecutive Sixes

Visa

4 Rolls To 4

Capital One

Base 13 Conversion

ServiceNow

Same Stripes

Factorial Formula

Amazon

Intersection of Two Lists

Spotify

Another One

Intuit

Weakest Strong Link

Google

Fizz Buzz Sum

Fintech

Compound Interest

Bloomberg

Collatz Sequence Steps

TikTok

Triangular Sum

Duplicate Job Listings

Robinhood

Cities With Completed Trades

Apple

Contains Duplicate

Straight Line

Palantir

Roman to Integer

Counting Letters In Numbers

Average Review Ratings

FAANG

Well Paid Employees

PayPal

Final Account Balance

Workday

Is Anagram?

Uber

Pascals Triangle

Pascals Triangle (Part 2)

QuickBooks vs TurboTax

App Click-through Rate (CTR)

Second Day Confirmation

Is Palindrome

Hundreds of Hypotheses

Probability of 7-Game Series

IBM db2 Product Analytics

Many Metropolitan Areas

Cards Issued Difference

Alibaba

Compressed Mean

CVS Health

Pharmacy Analytics (Part 1)

Pharmacy Analytics (Part 2)

Pharmacy Analytics (Part 3)

McKinsey

Assumptions of Linear Regression

Bootstrapping 101

UnitedHealth

Patient Support Analysis (Part 1)

Netflix

Lazy Movie Raters

User's Third Transaction

Second Highest Salary

Snapchat

Sending vs. Opening Snaps

Tweets' Rolling Averages

Akuna Capital

Consecutive Fives

Highest-Grossing Items

Top Three Salaries

Sample Margin of Error

Signup Activation Rate

Accenture

Fill Missing Client Data

Spotify Streaming History

Mean, Median, Mode

Pharmacy Analytics (Part 4)

Longest Consecutive Sequence

Looping Number

Gift Card Satisfaction

Salesforce

Matrix Rotation

Adobe

Clock-wise Matrix Rotation

Min Amplitude

Walmart

Average Subarray

Databricks

k-Radius Average

Idle GPU Days

Swiggy

Hill Climbing

Video Ads Insertion

Spiral Matrix

Integer to Roman

Frequently Purchased Pairs

Data Conference Attendees

Bias-Variance Tradeoff

Supercloud Customer

Blackstone

Real Estate Modelling

Most Popular Integers

Factorial Trailing Zeroes

Smallest Multiple

Generate Fractions

D.E. Shaw

Max Product of Three Numbers

Two Sum

Two Sum (Part 2)

Two Sum (Part 3)

Largest Prime Factor

Rotating Factorial

Pearson Correlation Coefficient

Merge Conflicts

Largest Contiguous Subarray Sum

Biased Coin?

Odd and Even Measurements

Zomato

Swapped Food Delivery

Coin Change

FAANG Stock Min-Max (Part 1)

Airbnb

Booking Referral Source

Company	Title	Category	Difficulty
Facebook	Page With No Likes	SQL	Easy
Facebook	Coin Fairness Test	Statistics	Easy
Facebook	Average Post Hiatus (Part 1)	SQL	Easy
Facebook	App Click-through Rate (CTR)	SQL	Easy
Facebook	Video Ads Insertion	Python	Medium
Facebook	Active User Retention	SQL	Hard
Facebook	Advertiser Status	SQL	Hard
Facebook	Product vs. Square	Statistics	Hard

SQL & Data Interview Questions

Career Resources

Support

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