1. Why is data visualization important for decision-making?
Data visualization simplifies complex information and helps patterns, trends, and risks appear quickly.
2. Which data visualization type is best for showing trends over time?
Line charts work best for trends, as they show rises and falls across days, months, or years.
3. When should pie charts be avoided in data reporting?
Pie charts become confusing with many categories and work best with only a few clear parts.
4. How do dashboards help organizations track performance?
Dashboards combine multiple visuals in one place to monitor progress, compare results, and spot issues.
5. Are advanced charts harder for general audiences to understand?
Advanced charts need careful design, but clear labels and colours make them accessible.