precedent vs probability

precedent

noun
  • An act in the past which may be used as an example to help decide the outcome of similar instances in the future. 

  • The previous version. 

  • A decided case which is cited or used as an example to justify a judgment in a subsequent case. 

  • An established habit or custom. 

verb
  • To provide precedents for. 

  • To be a precedent for. 

adj
  • Happening or taking place earlier in time; previous or preceding. 

probability

noun
  • The relative likelihood of an event happening. 

  • The state of being probable; likelihood. 

  • A number, between 0 and 1, expressing the precise likelihood of an event happening. 

  • An event that is likely to occur. 

How often have the words precedent and probability occurred in a corpus of books? (source: Google Ngram Viewer )