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

Supervised vs Unsupervised Learning
Supervised and unsupervised learning: the two approaches that we should know in the world of machine learning.
Nathan Rosidi -

Probability Interview Questions For Data Scientists
In this article, we will look at a few probability questions from Data Science Interviews at top companies and outline various solving techniques.
Vivek Sankaran -

A Resource Guide to Jump-Start Your Own Data Science Projects
A very into-detail guide on the data science project components and the resources for jump starting your very own project.
Abhishek Ramesh -

Overview of Machine Learning Algorithms: Unsupervised Learning
This article is useful to help you get more familiar with the unsupervised learning algorithms in machine learning.
Nathan Rosidi -

Lyft Data Scientist Interview Question Walkthrough
A three step solution to an SQL question asked during an interview at the ride-hailing company.
Irakli Tchigladze -

Airbnb Data Scientist Interview Questions
This article will teach you how to solve one of the hard Airbnb data scientist interview questions.
Nathan Rosidi -

Facebook Data Scientist Probability Interview Questions
A comprehensive approach for solving a Facebook (Meta) Data Scientist probability interview question!
Nathan Rosidi -

Google SQL Interview Questions
Learn how to better formulate your approach to all Google SQL interview questions.
Irakli Tchigladze -

Data Literacy - 10 Things You Should Know
What is data literacy? What should you know to become data literate? We are about to answer these two questions that might be bugging you for a while.
Nathan Rosidi -

Find the Retention Rates – Salesforce SQL Interview Question
Retention rates are one of the key business metrics. We’ll show you how to calculate them by explaining in detail how to solve the Salesforce data science interview question.
Nathan Rosidi -

String and Array Functions in SQL for Data Science
Commonly used string and array functions in SQL Data Science Interviews.
Vivek Sankaran -

Concepts and Questions to Prep for Your Data Analyst Job Interview
The demand for Data Analysts is on the rise – market analysis shows that up to 85% of companies have adopted data analysis technologies.
Nathan Rosidi -