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

4 Python Data Visualization Libraries You Can’t Do Without
Matplotlib, seaborn, Plotly, and pandas - the 4 Python data visualization libraries you can’t do without. Learn how to use them with our code examples.
Nathan Rosidi -

Data Mining Projects: With Source Codes
Unlock the Full Potential of Data with Expert-Guided Data Mining Projects and Source Code.
Nathan Rosidi -

Methods for Ranking in Pandas
Learn how to rank data in Python Pandas using different methods. We use the Airbnb, Google, and Yelp datasets for practical examples.
Nathan Rosidi -

Probability Cheat Sheet: Rules, Laws, Concepts, and Examples
This probability cheat sheet equips you with knowledge about the concept you can’t live without in the statistics world. Yes, it’s probability!
Nathan Rosidi -

Google Data Scientist Salary
All the details about earning your salary as a data scientist at Google.
Nathan Rosidi -

How to Become a Data Scientist from Scratch
A comprehensive guide that will take you through every necessary step to become a successful data scientist from scratch.
Nathan Rosidi -

LeetCode vs HackerRank vs StrataScratch for Data Science
In this article, we put three interview preparation platforms up against each other in the battle of LeetCode vs HackerRank vs StrataScratch.
Nathan Rosidi -

SQL Cheat Sheet – Technical Concepts for the Job Interview
This SQL cheat sheet gives you a concise and practical overview of the SQL concepts you’ll need for the job interview.
Nathan Rosidi -

Top 30 SQL Query Interview Questions
Today we’re having a look at the top 30 SQL query interview questions and concepts that you must prepare for an SQL coding interview.
Nathan Rosidi -

Data Science Coding Interview Questions with 5 Technical Concepts
Understanding 5 coding concepts of data science coding interview questions that companies will test you on and preparing for them effectively.
Nathan Rosidi -

A Comprehensive Guide to Advanced Python Concepts
Advanced Python explained in a way that even beginners can get it. We’ll give you an overview of the concepts and then dedicate a separate article to each.
Nathan Rosidi -

The Best Way to Learn SQL for Data Science
You don’t know how to learn SQL? No more excuses! This is a detailed guide to the best ways of learning this most in-demand skill.
Nathan Rosidi -