As title states, I created say 15 image ads in a Facebook campaign. The bid model is CPc seeing I'm new to fb. If all my bids are the same, why isn't the impressions being equally disbursed amongst the 15 ads? For example, like 3 of my ads have over 20k impressions when the remaining 12 have under 200. Why is this? im familiar with pof advertising and I'm use to those impressions being equally disbursed. All ads have same demo and audience. thanks in advance.