The average size is 3,131 square feet, with a standard deviation of 655 square feet. (Standard deviation is a statistical measure of variance.)

平均大小为 3,131平方英尺，标准偏差为 655 平方英尺（标准偏差是一个描述差异的统计量度）。

youdao

The Gini coefficient, a standard statistical measure of inequality, has fallen steadily since 2001 (though it remains very high by international standards).

吉尼系数(测量所得分配公平与否的统计指标)从2001年起开始稳定下降，但以国际标准来看仍然偏高。

youdao

The Gini coefficient, a standard statistical measure of inequality, has fallen steadily since 2001 (though it remains very high by international standards).

吉尼系数(测量所得分配公平与否的统计指标)从2001年起开始稳定下降，但以国际标准来看仍然偏高。

youdao