theshashank1/cse-c5-3year-da ? reverse-engineered prompt

Build me a simple, clean notebook based learning project for basic data analysis in Python.

I want one notebook for NumPy practice and one notebook for Pandas practice, with clear examples and enough explanations that a beginner can follow along. Use the included CSV file to show a few realistic data tasks like loading the data, checking columns, cleaning messy values, filtering rows, grouping, and doing some basic summaries. Also include the practice questions from the markdown file in a neat way, so it feels like a study resource and not just raw code.

Keep everything easy to read, with short notes before each section and code cells that actually run from top to bottom. If anything is unclear from the files, use sensible beginner friendly assumptions and keep the project simple. If you need current details for anything, look up the docs online.