二项式分布If x is a normal random variable with mean 80 and standard deviation 5,the z-score for x = 88 is ___________ .Select one:A.-1.8B.1.6C.-1.6D.8.0E.1.8我主要是不理解到底要不要再乘根号下N,即为样本呢?不用是因为是

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二项式分布If x is a normal random variable with mean 80 and standard deviation 5,the z-score for x = 88 is ___________ .Select one:A.-1.8B.1.6C.-1.6D.8.0E.1.8我主要是不理解到底要不要再乘根号下N,即为样本呢?不用是因为是

二项式分布If x is a normal random variable with mean 80 and standard deviation 5,the z-score for x = 88 is ___________ .Select one:A.-1.8B.1.6C.-1.6D.8.0E.1.8我主要是不理解到底要不要再乘根号下N,即为样本呢?不用是因为是
二项式分布
If x is a normal random variable with mean 80 and standard deviation 5,
the z-score for x = 88 is ___________ .
Select one:
A.-1.8B.1.6C.
-1.6D.8.0
E.1.8
我主要是不理解到底要不要再乘根号下N,即为样本呢?不用是因为是标准的正态分布吗?为何?

二项式分布If x is a normal random variable with mean 80 and standard deviation 5,the z-score for x = 88 is ___________ .Select one:A.-1.8B.1.6C.-1.6D.8.0E.1.8我主要是不理解到底要不要再乘根号下N,即为样本呢?不用是因为是
简单,选B