Python Practice
Real-life problems solved with Python. Read the scenario, write the program, and see your answer checked against hidden tests.
Basic10 pts
The 90th percentile delivery promise
Data Analysis
Solve challengeBasic10 pts
Emergency room wait-time summary
Data Analysis
Solve challengeBasic10 pts
Did the new checkout button win?
Data Analysis
Solve challengeBasic10 pts
Spot the odd card payments
Data Analysis
Solve challengeBasic10 pts
Ad spend versus sales: fit the line
Data Analysis
Solve challengeBasic10 pts
Which month did a channel convert?
Data Analysis
Solve challengeIntermediate25 pts
Forecast bake-off: naive, average or smoothing?
Data Analysis
Solve challengeIntermediate25 pts
Build the league table
Data Analysis
Solve challengeIntermediate25 pts
Support team scorecard (two files)
Data Analysis
Solve challengeIntermediate25 pts
Month-over-month swings in energy demand
Data Analysis
Solve challengeIntermediate25 pts
Longest heatwave streak
Data Analysis
Solve challengeIntermediate25 pts
Order value histogram
Data Analysis
Solve challengeExpert50 pts
Anomalies that do not poison the baseline
Data Analysis
Solve challengeExpert50 pts
Black Friday forecast: seasonality plus trend
Data Analysis
Solve challengeExpert50 pts
Clean the messy order export
Data Analysis
Solve challengeExpert50 pts
Spot the outlier flights
Data Analysis
Solve challengeExpert50 pts
Waiting-time percentiles by hospital site
Data Analysis
Solve challengeExpert50 pts
School league with shared ranks
Data Analysis
Solve challengeExpert50 pts
Revenue rollup from nested JSON orders
Data Analysis
Solve challenge