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Facebook
Page With No Likes
Tesla
Unfinished Parts
Twitter
Histogram of Tweets
New York Times
Laptop vs. Mobile Viewership
LinkedIn
Data Science Skills
Average Post Hiatus (Part 1)
Microsoft
Teams Power Users
Linkedin
Duplicate Job Listings
Robinhood
Cities With Completed Trades
Amazon
Average Review Ratings
App Click-through Rate (CTR)
TikTok
Second Day Confirmation
JPMorgan Chase
Cards Issued Difference
Alibaba
Compressed Mean
CVS Health
Pharmacy Analytics (Part 1)
Pharmacy Analytics (Part 2)
Pharmacy Analytics (Part 3)
UnitedHealth
Patient Support Analysis (Part 1)
Patient Support Analysis (Part 2)
Uber
User's Third Transaction
Snapchat
Sending vs. Opening Snaps
Tweets' Rolling Averages
Highest-Grossing Items
Spotify
Top 5 Artists
Signup Activation Rate
Supercloud Customer
Google
Odd and Even Measurements
Walmart
Histogram of Users and Purchases
Compressed Mode
Card Launch Success
Verizon
International Call Percentage
Active User Retention
Wayfair
Y-on-Y Growth Rate
Maximize Prime Item Inventory
Median Google Search Frequency
Advertiser Status
McKinsey
3-Topping Pizzas
Patient Support Analysis (Part 3)
Patient Support Analysis (Part 4)
Stripe
Repeated Payments
Refer Friends To Unlock More Questions
Calculate Rates7
Array Functions2
Minimum/Maximum4
Date-Time Operations13
Mathematical Functions3
Aggregations24
Ace the Data Science Interview15
Type Conversion11
Categorize Data14
Window Functions11
Top X5
Existence Check5
Cumulative Sums0
SQL Series1
Conditional Aggregation8
String Functions2
Unique Results8
User Behavior5