false negative vs false positive

false negative

noun

  • A result of a test that shows as absent something that is present. 

  • A type II error (“accepting the null hypothesis when it is false”). 

false positive

noun

  • type I error 

  • A result of a test that shows as present something that is absent. 

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