When you have thousands of different pieces of data, to grasp it mentally, you need to replace them with some simplification. For example, instead of a thousand different weights you could imagine a thousand identical weights, such that the new set is somehow the same as the original set; and then you would focus on the individual weight from the new set.
What precisely does "somehow the same as the original set" mean? Well, it depends on what did the numbers from the original set do; how exactly they join together.
For example, if we speak about w... (read more)