Wing
The Data and AI Wing
Paid level
The data skills analysts actually use: Excel, SQL, Python, charts, statistics, and AI tools, each taught on business examples and backed by graded problems.
Inside this level
- Excel for Analysts: models, lookups, pivots
- SQL for Business Questions: joins, groups, window functions
- Python for Analysis: cleaning, grouping, plotting
- Data Visualization: honest charts and exhibit craft
- Statistics for Decisions: averages, sampling, A/B tests
- AI Tools for Analysts: drafting with AI and checking its work
- 596 graded data problems at Easy, Medium, and Hard
The briefings in this level open with full access, a resume review tier, or an active membership. Level 0 and Level 1 are free, and the first briefing in Case Math and in the Accounting, LBO, and Modeling track is free.