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lymtis · 2020年01月10日

问一道题:NO.PZ2020010302000009 [ FRM I ]第二问Standardize如何计算??

第二问Standardize如何计算?

问题如下图:

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品职答疑小助手雍 · 2020年01月10日

同学你好,第二部standardize其实就是以均值为0,标准差(方差)为1的标准正态分布为基准,把参数标准化的过程,也就是把这15个数值计算一下他们分别离均值有多少个标准差(6.762开方)。

那1号举例,(-2.456-mean)/标准差=(-2.456+0.803)/2.6= -0.636

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