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

Intuit

Weakest Strong Link

Google

Fizz Buzz Sum

Palantir

Roman to Integer

Bloomberg

Collatz Sequence Steps

TikTok

Triangular Sum

Duplicate Job Listings

Robinhood

Cities With Completed Trades

Apple

Contains Duplicate

Straight Line

Counting Letters In Numbers

Amazon

Average Review Ratings

FAANG

Well Paid Employees

PayPal

Final Account Balance

Uber

Pascals Triangle

Pascals Triangle (Part 2)

QuickBooks vs TurboTax

App Click-through Rate (CTR)

Second Day Confirmation

Spotify

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

Top 5 Artists

Sample Margin of Error

Signup Activation Rate

Accenture

Fill Missing Client Data

Spotify Streaming History

Mean, Median, Mode

Pharmacy Analytics (Part 4)

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

Factorial Trailing Zeroes

Smallest Multiple

D.E. Shaw

Max Product of Three Numbers

Two Sum

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

Uniform Distribution Median

User Shopping Sprees

Fraud Detection Metrics

2nd Ride Delay

Histogram of Users and Purchases

Mu Sigma

Correlation Calculation

Google Maps Flagged UGC

Compressed Mode

Card Launch Success

Company	Title	Category	Difficulty
LinkedIn	Data Science Skills	SQL	Easy
LinkedIn	Duplicate Job Listings	SQL	Easy
LinkedIn	Connection Request Spam	Machine Learning	Medium

SQL & Data Interview Questions

Career Resources

Support

Interview Questions