Question

i understand what the amount of students online is for in each subject but what does the number of students mean in general?

Answer 1

example of what i'am talking about

Answer 2

i think its how many have an account in hat subject or have used it b4?

Answer 3

Correct. It's the number of students who have studied the subject; currently, that just means who have ever visited the subject page. We're working on making that a little higher threshold, as in you're not `studying' a topic unless you've actually posted a question in the group.