下列关于累计频数概括地反映变量取值的分布特征,说法错误的是( )
A.向上累计分布曲线呈上升状
B.向下累计分布曲线呈下降状
C.组的次数(或频数)较少,曲线显得平缓
D.组的次数(或频数)较少,曲线显得陡峭
正确答案是D
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