inexact vs wrong number

inexact

adj
  • having a path-dependent integral 

  • Imperfectly conforming; exceeding or falling short in some respect. 

  • Imprecisely or indefinitely conceived or stated. 

wrong number

noun
  • A telephone number dialled by mistake, for example by transposing digits. 

  • A telephone call received from an unfamiliar caller, due to a mistake in the number dialled. 

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