decided vs plain as the nose on one's face

decided

adj

  • Clear; unmistakable. 

  • Determined; resolute. 

noun

  • A voter etc. who has reached their decision. 

plain as the nose on one's face

adj

  • Extremely evident and plain to see. 

How often have the words decided and plain as the nose on one's face occurred in a corpus of books? (source: Google Ngram Viewer )