Main Entry: prob·a·bil·i·ty

Pronunciation: \ˌprä-bə-ˈbi-lə-tē\

Function: noun

Inflected Form(s): plural prob·a·bil·i·ties

Date: 15th century

1 : the quality or state of being probable
2 : something (as an event or circumstance) that is probable
3 a (1) : the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes (2) : the chance that a given event will occur b : a branch of mathematics concerned with the study of probabilities
4 : a logical relation between statements such that evidence confirming one confirms the other to some degree