The standard deviation of a certain set of data is 4. If 12 is 1.5 standard deviations away from the mean, which of the following values could be the mean of the set of data?
A 6
B 16
C 8
D 14
E 10作者: 卧室春竹 时间: 2003-2-2 21:34
ME 认为
就是 12-1.5*4=6
或者是 12+1。5*4=18
您觉得呢？作者: arfish 时间: 2003-2-3 15:20
agree作者: leaf 时间: 2003-2-5 21:30
right, the answer is A作者: yuw99gmat 时间: 2003-2-11 22:21
right, there could be two answer , one is 6 , the other one is 18作者: qiqi 时间: 2003-2-12 11:17
同意A
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