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1. The distribution of the data is approximately a normal curve, with the first quartileat 50% and the third quartile at 95%.
数据分布大致呈正态曲线，第一四分位数为50%，第三四分位数为95%。
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2.In statistics, the first quartile is often used to define the lower bound of the median.
在统计学中，第一四分位数通常用于定义中位数的下界。
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3.The first quartile is also known as the first decile, which is the smallest percentile in the distribution.
第一四分位数也被称为第一百分位数，是分布中的最小百分位数。