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... returns of two stocks are the same but the standard deviations of the returns differ, which security is to be preferred...
E(X)=15, Var(X)=25, so that standard deviation of asset X is 5 E(Y)=8, Var(Y)=4, standard ...
Compute the sample variance and the sample standard deviation for these data (to 2 decimals). Sample... the 95% confidence interval estimate of the standard deviation for the population (to 1 decimal)? ( √7.9 , &radic...
limit of detection就是可分辨的最小訊號,通常以S/N=3來說為平均空白訊號+3倍的空白訊號的 standard deviation ;precision就是測量的再現性,即每次的測量值與平均值的差異,可以 standard deviation 表示.因此 standard deviation 越小的話偵測極限越低.
標準差( standard deviation ), 是用來表示一群計量值分佈的"散布"程度. 標準差等於是變異數(variance)的開平方根 若標準差的值愈大, 則散布程度愈大 ; 若標準差的值愈小,則散布程度愈小.
(a) Find the mean and standard deviation of examination scores : 96,65,87,90,84,78,91,82,76,69 求測驗成績的(算術...
standard deviation 相關
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