Is it possible to come up with a probability theory problem using social network data?

Question

Social media

At school, the niece was given the task to come up with (and solve) a probability theory problem using social media data (VK).
Please help me with ideas.
Thank you!

Answer 1

The low probability that the focus group of the 16-year audience uses (VK) for text messages during the day, more than after school, makes it possible to analyze the real age of the recipient. (my subjective opinion) Such an analysis by city can give statistics on many factors. Introductory: messages (difference in the number of characters, the sound of notifications is muted, between local users, classmates, attachments, hashtag links, localization reposts).
...