英和和英

語源

From Middle French quartil, from Medieval Latin quartilus. By surface analysis, quart +‎ -ile.

発音

• IPA: /ˈkwɔː(ɹ)taɪl/

名詞

quartile (plural quartiles)

1. (statistics) Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population.
2. (statistics) Any one of the four groups so divided.

   This school is ranked in the first quartile.

   • 2021 July 28, Paul Clifton, “Network News: Confusion and dissent over face mask requirements: Reaction to the Guidance: British Safety Council”, in RAIL, number 936, page 6:

     The Department for Transport's National Travel Survey shows that workers in the lowest income quartile are twice as likely to use public transport.

   • 2023 July 18, Elisabeth Buchwald, “Americans aren’t rebuilding their savings fast enough”, in CNN Business‎:

     In June 2021, the top-income quartile of Chase customers had a median cash buffer of 43 days, while the lowest-income quartile had a median cash buffer of 22 days.

   • 2024 November 15, Kristen Rogers, “Want to live an extra 5 to 10 years? Adopt this habit, study suggests”, in CNN‎:

     Total activity levels in the lowest quartile were equivalent to walking for 49 minutes at roughly 3 miles (4.8 kilometers) per hour daily. Total activity levels in the second-, third- and fourth-highest quartiles were equivalent to 78, 105 and 160 minutes, respectively.

上位語

• quantile

等位語

• (statistics):
• median (2-quantile), tercile/tertile (3), quartile (4), quintile (5), sextile (6), septile (7), octile (8), decile (10), hexadecile (16), ventile/vigintile (20), centile/percentile (100), millile (1000)

派生語

派生語

• interquartile range

動詞

quartile (third-person singular simple present quartiles, present participle quartiling, simple past and past participle quartiled)

1. (transitive) To divide into quartiles.

参照

• “quartile”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

アナグラム

• requital