Summary
This simple guide shows the basics of viewing data usage on an Android tablet without having to install a 3rd party app.
Device: Google Nexus 10 running Android 4.4
Navigate to Settings
From the home screen, swipe your finger down from the upper right corner. You should see a menu as pictured. Tap on "Settings".
Navigate to Data Usage
Once the settings screen displays, as pictured here, tap on "Data Usage" under "Wireless and Network" settings.
View Data Usage
The data usage screen, as pictured here, displays:
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