A percentile is one of a hundred equal slices you can cut a group into. People use it when they compare scores, height, money, or health numbers.

A percentile is one of a hundred equal slices you can cut a group intoPercentile是你把一群人切成一百等份時，其中的一份。People use it when they compare scores, height, money, or health numbers大家在比較分數、身高、金錢或健康數據時會用到它。

If your score is at the 80th percentile, you did better than about 80 out of 100 people in that group. It does not tell you that you got 80 percent of the questions right.

If your score is at the 80th percentile如果你的分數在80th percentile（第80百分位），you did better than about 80 out of 100 people in that group代表你比那個群體裡大約100人中的80人表現得好。It does not tell you that you got 80 percent of the questions right這不代表你答對了80%的題目。

Teachers, doctors, and reports like the word because it shows where you sit in the crowd, not only your raw mark.

Teachers, doctors, and reports like the word老師、醫生和報告都喜歡用這個字，because it shows where you sit in the crowd, not only your raw mark因為它顯示的是你在人群裡的位置，不只是你的原始分數。

Francis Galton made the word in 1885 from percent plus a little ending that means “one of a set of slices.” Though actually, people mix it up with percent all the time, and the two are cousins, not twins: percent is a share of a whole, and a percentile is a place in a line of people.

Francis Galton made the word in 1885法蘭西斯·高爾頓（Francis Galton）在1885年創造了這個字，from percent plus a little ending that means 'one of a set of slices.'用percent加上一個表示「一組切片裡的其中一片」的小字尾組成。Though actually, people mix it up with percent all the time不過，大家常常把它跟percent搞混，and the two are cousins, not twins這兩個字是表親，不是雙胞胎：percent is a share of a wholepercent是整體裡的一個佔比，and a percentile is a place in a line of people而percentile是一個人在一排人裡的位置。