Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Latest Blog Posts
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How to Iterate Over a Dictionary in Python?
We explore fundamental concepts in Python ‘Iterate’ over a ‘Dictionary’ (dict) and learn iteration methods to search, update, modify, and transform data.
Shivani Arun - December 11, 2025
Career Path for Artificial Intelligence Engineers
Artificial intelligence engineers are a very hot commodity in today's data jobs market. Learn everything you need to know about an AI engineering career.
Nathan Rosidi - December 3, 2025
How to Conduct a T-Test in R for Data Analysis
Learn to run t-tests in R: check assumptions, interpret statistical results, and apply insights effectively to real-world data analysis projects.
Nathan Rosidi - November 20, 2025
How to Create Pivots in SQL (with examples)
Reshaping data using Pivots is table-stakes in data science. Learn about its importance, techniques, and implementation.
Shivani Arun - November 14, 2025
Career
All Career articlesCareer Path for Artificial Intelligence Engineers
Artificial intelligence engineers are a very hot commodity in today's data jobs market. Learn everything you need to know about an AI engineering career.
Nathan Rosidi - December 3, 2025
The Biggest Lie in Data Science: 'You Need to Build an App'
Most data scientists don’t need to build web apps. But if you must, this no-BS guide breaks down which frameworks actually make sense (and which don't).
Nathan Rosidi - July 16, 2025
Why Your ML Job Feels Like a Lie (And What To Do About It)
Nathan Rosidi - May 2, 2025
Interviews
All Interviews articlesHow to Iterate Over a Dictionary in Python?
We explore fundamental concepts in Python ‘Iterate’ over a ‘Dictionary’ (dict) and learn iteration methods to search, update, modify, and transform data.
Shivani Arun - December 11, 2025
How to Conduct a T-Test in R for Data Analysis
Learn to run t-tests in R: check assumptions, interpret statistical results, and apply insights effectively to real-world data analysis projects.
Nathan Rosidi - November 20, 2025
Guides
All Guides articlesHow to Iterate Over a Dictionary in Python?
We explore fundamental concepts in Python ‘Iterate’ over a ‘Dictionary’ (dict) and learn iteration methods to search, update, modify, and transform data.
Shivani Arun - December 11, 2025
Career Path for Artificial Intelligence Engineers
Artificial intelligence engineers are a very hot commodity in today's data jobs market. Learn everything you need to know about an AI engineering career.
Nathan Rosidi - December 3, 2025
Companies
All Companies articles
What Does It Take to Be a Data Engineer at Google
Journeying through Skills, Perks, and Application Insights for Aspiring Google Data Engineers
Nathan Rosidi - May 23, 2024
Microsoft SQL Interview Questions
We'll discuss one of the interesting Microsoft SQL interview questions to help prepare you for applying for a role as a Microsoft data scientist.
Nathan Rosidi - October 30, 2023
LinkedIn Data Scientist Interview Questions
Nathan Rosidi - October 30, 2023
40+ Data Science Interview Questions From Top Companies
Nathan Rosidi - October 30, 2023
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