haphazard vs throw of the dice

haphazard

noun

  • Simple chance, a random accident, luck. 

adj

  • Random; chaotic; incomplete; not thorough, constant, or consistent. 

throw of the dice

noun

  • Synonym of roll of the dice. 

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