This document discusses the process of statistics and analyzing app usage data. It outlines the key steps as collecting data through surveys, using statistical formulas to process the data, and publishing the results. As an example, the document presents data on the number of apps in different categories used on Android and iOS platforms, showing Android dominating with 97.9% compared to IOS's 2.1%. It concludes by noting some of the challenges in conducting an effective survey and collecting accurate data.