Data Science Educational Resources
StrataScratch is a data science educational platform with over 1,000+ real interview questions from your favorite companies.
Guides
DoorDash SQL Interview Questions
DoorDash SQL Interview Questions: delivery timing, order volumes, driver performance, and customer behavior
Sara Nobrega -
How FAANG companies are leveraging data science and AI
This article will cover information about how FAANG companies leverage Data Science and AI to drive product innovation and thereby improve their customer satisfaction and drive revenue growth.
Nathan Rosidi -
Python Window Functions
This article focuses on different types of Python window functions, where and how to implement them, practice questions, reference articles and documentation.
Abhishek Ramesh -
How to Nail a Data Science Interview at Google - Real Interview Scenario
Do you have a data science job interview coming up? Get well prepared by looking at this real interview scenario from Google! Are you able to answer this set of data science interview questions?Nathan Rosidi -
How to Use STRING_AGG to Solve SQL Questions in Data Science Interviews
STRING_AGG is a rather rarely used SQL aggregation function but it sometimes comes useful when solving data science interview tasks. An example of this is the recent and very tasty interview question from Amazon that deals with some cookbook titles.Nathan Rosidi -
Assignment Solutions: Basic SQL 1
Take a look at the solutions and explanations to the Assignment: Basic SQL 1.Nathan Rosidi -
Supervised vs Unsupervised Learning
Supervised and unsupervised learning: the two approaches that we should know in the world of machine learning.Nathan Rosidi -
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 -
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 -
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 -