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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