【判断题】样本标准差 Sn 是总体标准差的无偏估计。
【单选题】_____, he does get irritated with her sometimes.
C.
Though much he likes her
【判断题】样本标准差 Sn是总体标准差的无偏估计量。
【单选题】______ , he does get irritated with her.
B.
Though much he likes her
C.
Much though he likes her
【判断题】样本标准差Sn是总体标准差的无偏估计。( )