15-Day Data Analyst Interview Questions and Answers

Welcome to the 15-Day Data Analyst Interview Questions and Answers repository!
This repository is designed to help aspiring Data Analysts prepare for interviews by covering essential topics over 15 days. Each day focuses on a specific topic to build a strong foundation and confidence. These questions are framed by Grow Data Skills and answers are from ChatGPT.

Table of Contents

SQL Topics

1. Day 1: Basic SQL
2. Day 2: Intermediate SQL
3. Day 3: Advanced SQL
4. Day 4: Advanced SQL_Final 15

Business Intelligence (BI) Topics

5. Day 5: Excel
6. Day 6: Business Statistics
7. Day 7: Basic Power BI
8. Day 8: Advanced Power BI
9. Day 9: Scenario-Based BI
10. Day 10: Power BI somemore

Python Topics

11. Day 11: Basic Python
12. Day 12: Exploratory Data Analysis (EDA) with Python

Data Modeling and Projects

13. Day 13: Data Modeling
14. Day 14: Scenario-Based Power BI
15. Day 15: Project Ideas

How to Use This Repository

1. Follow the Schedule: Each folder corresponds to a day's topic. It’s recommended to go through the topics in order.
2. Practice Questions and Answers: Inside each folder, you’ll find commonly asked interview questions along with answers and explanations.
3. Implement Learnings: Wherever applicable, try solving questions and implementing scenarios in tools like SQL workbenches, Excel, Power BI, or Python.