quartile

• n. 四分位数；四分点

quart-,四，四分之一，-ile,形容词后缀。引申词义四等分，四分位数。

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).

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.

来自辞典例句

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.

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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.

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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.

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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.

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