zài / jì / suàn / zhè / zǔ / shù / jù / shí / wǒ / men / xiān / qiú / chū / tā / men / de / píng / fāng / píng / jūn / shù

在计算这组数据时，我们先求出它们的平方平均数。

When calculating this set of data, we first find its root mean square.