Merge "Add more explanation on difference between aggregate and discrete...

Merge "Add more explanation on difference between aggregate and discrete information." into sc-dev am: 3476ed1d am: 959e1d38

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14411200

Change-Id: Icb002b46e2b344361f489f6c117c94177591c200