Can someone explain what is aggregate data and how it's used? or What is aggregate data and why is it

Aggregate data is like zooming out on a map. You see the highways, not every street. Useful for trends, but yeah, you miss the potholes.

Example: Spotify uses it to recommend playlists based on what *most* people listen to, not just your weird niche picks lol.

If you’re new, try Tableau Public—it’s free and great for visualizing aggregated stuff.