数学疑惑

apple1

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。

himba

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

apple1

thanks  a   lot  !!!!!