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如何用天雁计算器求方差
更新时间: 2021-04-11 23:07:41  

1、关机--清零--开机(有些计算机里原来有数据,所以要这一步)。

2、按mode 再按2到SD模式(统计模式)。

3、输入数据a 再按M+接着输入数据b,再按M+,直到输完。

4、按shift键,再按数值2,再按2=,接着按X2(x平方键)=,结果即为方差。

关键词: 何用 计算器

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