问题标题:
一个初二的数学计算题,但是有些麻烦.1、求0.001,0.002,0.002,0.003,0.001,0.002,0.004的方差2、求0.002,0.003,0.001,0.001,0.002,0.001,0.001,0.001,0的方差每题有10个数据
问题描述:

一个初二的数学计算题,但是有些麻烦.

1、求0.001,0.002,0.002,0.003,0.001,0.002,0.004的方差

2、求0.002,0.003,0.001,0.001,0.002,0.001,0.001,0.001,0的方差

每题有10个数据

巩瑞春回答:
  1)1.65*10的-6次   2)7.6*10的-7次
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《一个初二的数学计算题,但是有些麻烦.1、求0.001,0.002,0.002,0.003,0.001,0.002,0.004的方差2、求0.002,0.003,0.001,0.001,0.002,0.001,0.001,0.001,0的方差每题有10个数据|初中数学问答-字典翻译问答网》
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