词族 · quartile
词形变化
中文词源
quartile 四分位数
quart-,四，四分之一，-ile,形容词后缀。引申词义四等分，四分位数。
英语词源
- quartile (n.)
- c. 1500, originally in astronomy; see quartile (adj.). In statistics, from 1879.
- quartile (adj.)
- mid-15c., "90 degrees apart" (of astronomical measurements), from Middle French quartil, from Medieval Latin quartilus "of a quartile," from Latin quartus "fourth" (see quart).
权威例句
- 1. The upper quartile is that value above which 25 per cent of the observations lie.
- 上四分位数是25%的观察值位于其上的值.
- 2. Those in the quartile of FEV 1 decline were defined as fast declines.
- FEV1下降的四分位数最高值即定义为快速减退.
- 3. There were Therefore only 28 % of students in the top quartile are from lowerlower - income families.
- 因此,在高水平学生中只有28%的人来自 低收入 家庭.
- 4. Furthermore, this series is the first one in which patients have been distributed according to quartile.
- 此外, 该系列研究第一次采用四分位数法对患者分组.
- 5. Results SUA in quartile correlated with increasing IMT and severity of plaque in the elderly.
- 结果血尿酸四分位组分析显示,随分位数增加,老年人颈动脉IMT及斑块严重程度增加.