Can someone explain what is data aggregation in simple terms? or What is data aggregation and why is

Imagine you’re a teacher with 100 test papers.

Data aggregation is like calculating the class average instead of grading each one.

That’s why it’s a big deal—it simplifies decision-making.

Different from analysis because it doesn’t explain *why* the average is low.

Look at QuickSight if you’re into AWS.