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
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。