percentile

パーセンタイル

順に並べた結果のうち、特定の割合がその値より下に入る境界値。

やさしい英語で： A value below which a particular percentage of an ordered set of results falls.

• His score reached the ninetieth percentile.
• The fiftieth percentile is the median.
• What value marks the tenth percentile?

使い方： at the nth percentile (Her height is at the ninetieth percentile.)

よく使う表現： percentile rank, ninetieth percentile, percentile value

パーセンタイル群

人や結果を低い順に並べ、百等分した集団の一つ。

やさしい英語で： One of a hundred equal groups formed by arranging people or results from lowest to highest.

• She is in the top percentile.
• People in this income percentile earn much less.
• The bottom percentile includes the lowest scores.

使い方： in the nth percentile (The students in the top percentile received prizes.)

よく使う表現： top percentile, bottom percentile, income percentile