Let’s open the chapter about Product Analytics for mobile apps with the analysis of the previous exercise. The goal of the exercise was to estimate the release date of a certain mobile app version.
Such a question “When something appeared for the first time or started to happen?” is very common for many business processes:
- launch of marketing campaigns
- product releases
- bugs (the notion of when the bug was introduced could help to identify the root cause)
- etc
Usually, we have some sort of dataset with events and their timestamps. Our question “...