The Trap Effectiveness Meter located below your trap will give you a general idea of how your trap setup will fare and what mice you will be attracting based on your cheese and location.

Opening the Trap Effectiveness Meter will display a list of mice and will indicate if your current trap is effective against them or not. Clicking on an individual mouse in this list or visiting the mice  page will also let you know what trap types work best against the mice in your location.