Data Science Educational Resources

StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.

Companies Articles, Tutorials & Interview Questions

Python Interviews Whole Foods Market Companies
Whole Foods Market Data Science Interview Question Walkthrough
Welcome to another tutorial on solving data science interview questions. This time our interview question is from Whole Foods Market.
Nathan Rosidi - February 2, 2023
Airbnb Python Interviews Companies
Airbnb Python Interview Question: Host Popularity Rental Prices
We’ll walk you through one of the Airbnb Python interview questions and show you how to do data aggregation and labeling in Python.
Nathan Rosidi - January 26, 2023
SQL Interviews Wine Magazine Companies
Wine Magazine SQL Interview Question on RANK function
An exhaustive walkthrough to a hard-level SQL question involving windows functions, PARTITION BY clauses, CASE statements, and Common Table Expressions.
Nathan Rosidi - January 16, 2023
Python Interviews Forbes Companies
Forbes Python Interview Question Walkthrough
Forbes Python interview question, Most Profitable Companies, analyzed and solved in detail
Nathan Rosidi - January 13, 2023
SQL Spotify Companies Interviews
Spotify Advanced SQL Interview Question on PARTITION BY Clause
A detailed solution walkthrough to a hard Spotify SQL interview question involving Joins, Aggregations, Case Statements, and Partition By Clause.
Nathan Rosidi - January 10, 2023
Python Interviews Facebook Companies
Facebook Python Interview Questions
This Facebook python interview question will test your ability to use joins, perform transformations and calculations, and address edge-case scenarios.
Nathan Rosidi - November 24, 2022
PayPal Interviews Companies SQL
PayPal Data Scientist Interview Questions
In this post we'll take a close look at one of the PayPal data scientist interview questions and discuss two different ways of solving this question using SQL.
Nathan Rosidi - November 1, 2022
SQL Interviews Facebook Companies
Facebook Interview Question Walkthrough - Popular Posts
Our series of interview question walk-throughs marches on! Today we’ll be dealing with the advanced Meta/Facebook SQL question.
Nathan Rosidi - October 21, 2022
Noom SQL Interviews Companies
Noom Data Analyst Interview Question
Noom helps you lose weight. We help you get a job at Noom. In today’s article, we’ll show you one of Noom’s hard SQL interview questions.
Nathan Rosidi - September 30, 2022
Career Guides Google Companies
How to Get Hired as a Data Scientist at Google
Everybody wants to work at Google, but how do you become one that works there?
Nathan Rosidi - September 16, 2022
DoorDash Interviews SQL Guides
DoorDash SQL Interview Questions
DoorDash SQL Interview Questions: delivery timing, order volumes, driver performance, and customer behavior
Sara Nobrega - September 14, 2022
Amazon Interviews SQL Companies
Amazon Business Analyst Interview Questions
Sharpen your skills of writing SQL queries to maximize your chances of getting a Business Analyst job at Amazon
Irakli Tchigladze - September 9, 2022