Data Science100% Free Resources 8–10 Weeks
Data Analyst & Scientist Study Guide
Transform raw data into business intelligence using SQL, Python, Pandas, and exploratory data visualization.
SQLPythonPandas & NumPyTableauStatistics
Step-by-Step Curriculum
Follow each phase in order. Complete the hands-on project before moving to the next.
1
SQL Mastery for Analytics
Aggregations, Window functions, CTEs, Joins, and query optimization on millions of records.
Curated Free Courses & Guides:
Build to Master: E-Commerce Customer Cohort Retention Analysis
Write complex SQL queries calculating monthly cohort retention, churn rate, and customer lifetime value (LTV).
GitHub Portfolio Deliverables:
SQL scripts with CTEs & window functions
Executive dashboard visualization
Data story report
2
Python Data Wrangling & EDA
Pandas, NumPy, Seaborn, Matplotlib, and statistical hypotheses testing.
Curated Free Courses & Guides:
Build to Master: Real Estate Market Price Prediction & Insights
Clean messy tabular data, perform exploratory data analysis, and uncover key pricing drivers.
GitHub Portfolio Deliverables:
Jupyter notebook with visual charts
Handling missing values and outliers
Presentation slide deck
Jobs Requiring These Skills
Active opportunities on Role Nest that look for the skills in this roadmap.