diversity vs mixture

diversity

noun
  • A variety; diverse types or examples. 

  • Equal-opportunity inclusion. 

  • The quality of being diverse or different; difference or unlikeness. 

mixture

noun
  • Something that consists of diverse elements. 

  • A medicinal compound, typically a suspension of a solid in a solution 

  • A compound organ stop. 

  • A cloth of variegated colouring. 

  • A mix of different dry foods as a snack, especially chevda or Bombay mix. 

  • The act of mixing. 

  • Something produced by mixing. 

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