NumPy & Pandas75 challenges · 2 phases + capstone
Pandas Practice Workbook
Guided, then independent Pandas challenges, ending in an end-to-end customer retention report.
Practise NumPy on a synthetic Smart Factory sensor network with missing readings, fault spikes and anomalies.
A learning phase introduces concepts, a testing phase makes you choose the right operation yourself, and a final challenge builds a factory health dashboard. Hints and solutions are on request.
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NumPy & Pandas75 challenges · 2 phases + capstone
Guided, then independent Pandas challenges, ending in an end-to-end customer retention report.
SQL171 questions · 3 capstones · final assessment
SQL for data and AI roles on a 32-table SaaS dataset, validated on PostgreSQL and MySQL.
Python & Programming100 questions · 615 automated tests
Realistic data and AI engineering problems with hints, automated tests and hidden reference solutions.