26) 53 is the standard deviation of T(一数列) greater than S(一数列) ?
(1) mean of T is greater than that of S
(2) median of T is greater than that of S
Answer: A
能给个思路吗？我认为是E，又公式根号下(xi-m)^2/n可知，条件1并未告诉xi的情况。作者: himba 时间: 2005-3-15 13:40
26) 53 is the standard deviation of T(一数列) greater than S(一数列) ?
(1) mean of T is greater than that of S
(2) median of T is greater than that of S
53是什么啊！怎么能有一个确切的数呢？？
如果是问t的标准方差是否大于S的话，我认为应该是E作者: apple1 时间: 2005-3-16 12:48
thanks a lot !!!!!
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