luck of the draw vs probability

luck of the draw

noun
  • The random production of favorable or unfavorable results; chance. 

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 luck of the draw and probability occurred in a corpus of books? (source: Google Ngram Viewer )