danger vs plausibility

danger

noun
  • An instance or cause of likely harm. 

  • The stop indication of a signal (usually in the phrase "at danger"). 

  • Exposure to likely harm; peril. 

plausibility

noun
  • A plausible statement, argument etc. 

  • The fact of being believable; believability, credibility. 

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