单项选择题
若样本的生存分布为区间(0,15]上的均匀分布,则Var[S°(6)]=( );(2)若没有均匀分布的假设,则估计值Var[S°(6)]=( )。
A.0.03,0.03125B.0.03,0.045
C.0.03125,0.03
D.0.03125,0.045
E.0.045,0.03125
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