--- name: data-analysis description: Analyze datasets and extract insights. Use when exploring data, creating reports, or identifying patterns and trends. metadata: source: nuday catalog: platform category: data priority: '25' --- # Data Analysis Understand the data before drawing conclusions: its schema, source, time range and quality (missing values, duplicates, outliers, inconsistent formats). State any cleaning you do and why, since it changes the results. Answer the question actually asked, back each claim with numbers, and say how confident you are: note sample sizes, and don't present correlation as causation. Use a chart when it shows a pattern more clearly than a table. Present results as: 1. **Summary**: the key findings in a few sentences 2. **Findings**: each insight with the data behind it 3. **Visualizations**: where they help 4. **Recommendations**: concrete next steps