When I see a province with two numbers [for example, a 7/0 province or a 5/2 province], what do these numbers mean? A size seven province?

Incidentally, since I can't get the Birthright boxed set, if there is a province with a huge number of people but only villages and small towns, what kind of province level would that be? I mean to say does a province of a certain level have to have a certain number of people, a settlement of a certain size, etc. ?

Please cc to mr.sun@sixriverssolar.com , as I might not be able to find this board again!