If you notice the ranking is not consecutive with the use of the RANK function; that is because the RANK function ranks records of the result-set sequentially starting from 1. When it finds a tie it assigns the same rank to the all the records in the tie, but still keeps incrementing the record counter so the next record will get a new rank which would be (previous rank + no of records in the current tie + 1) .
Implausibility definition, not plausible; not having the appearance of truth or credibility: an implausible alibi. See more.
belief on reasonable grounds or probable evidence. 4. something that is presumed; an assumption. 5. a ground or reason for presuming or believing. 6. Law. an inference required or permitted by law as to the existence of one fact from proof of the existence of other facts. 7. an assumption, often not fully established, that is taken for granted in some piece of reasoning. 8. unwarrantable, unbecoming, or impertinent boldness.