Sources of data refer to the origins or mediums from which data is collected for analysis. These can be direct or indirect sources, structured or unstructured. Three examples of data sources, excluding those in the book, are:
- Social media platforms: User-generated content on platforms like Twitter or Facebook provides valuable data for sentiment analysis, customer preferences, and trend forecasting.
- Internet of Things (IoT) devices: Smart devices such as wearable fitness trackers generate data on health metrics, location, and usage patterns.
- Public data repositories: Government websites often provide datasets on demographics, economic statistics, or geographical information, useful for research and analysis.