What is the 90th percentile?

Answer:
90th percentile is simple another way of saying that 9% scored above and 90% scored below (the other 1% being the number 90).

For example, if you take a type of standardized test in high school, if you do well, you are at the 90th percentile, meaning 90% of students scored lower than you and 9% scored better. You can not be in the 100% percentile, because you cannot score better than yourself.
Contributor: Juan
First answer by ID3338406085. Last edit by VictorianBlue. Contributor trust: 4 [recommend contributor recommended]. Question popularity: 7 [recommend question].