normality vs oddity

normality

noun
  • The concentration of a solution expressed in gram equivalent weights of solute per litre of solution. 

  • A measure of how well an observed distribution approximates a normal distribution. 

  • The state of being normal or usual; normalcy. 

oddity

noun
  • Strangeness. 

  • An odd or strange thing or opinion. 

  • A strange person; an oddball. 

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