Matthew50,
When you buy population, it is distributed in the same way as your existing population. So, if most of your people are managers, most of the new population will be managers. If most of your population is young, then most of the new people will be young, if your population is old, most of the new people will be old, etc.
Buying population simply increases the total size of your population, it does nothing to alter overall demographic distribution, or education levels.
Signed President of DanNation on LU