Solutions

Reference solutions for the practical data science exercises.

Use this folder as a checkpoint after you attempt the work yourself first.

How To Use This Folder Well

• Try the exercises and project prompts before reading the solutions.
• Compare your reasoning, tradeoffs, and validation choices, not just the final output.
• Treat the solutions as calibration material, not as the primary learning path.

What Comes Next

• Return to ../README.md or the relevant practical-data-science subtrack after reviewing a solution.
• Continue to ../../16-model-evaluation/README.md if solution differences expose evaluation gaps.
• Continue to ../../09-mlops/README.md if your next question is how to operationalize the work.