SQL & Database Querying
Excel & Google Sheets
Python for Data Analysis
Pandas & NumPy
Data Visualization (Matplotlib/Seaborn)
Business Intelligence (Power BI/Tableau)
Statistics & Probability
Data Cleaning & Preprocessing
Exploratory Data Analysis (EDA)
Dashboard Design & Storytelling
A/B Testing & Hypothesis Testing
Google Analytics / GA4
ETL Pipelines (Basic)
BigQuery / Snowflake Basics