题目：
Which of the following statements about the central limit theorem is least likely correct()
A．The variance of the distribution of sample means is
B．The central limit theorem has limited usefulness for skewed distributions.
C．When the sample size n is large, the distribution of the sample means is approximately normal.
答案：
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参考答案：操作步骤(1)在画图程序中打开Test3.jpg，单击“文字”工具，在绘图区拖出一个矩形文本输入框，输入文字“走吧”；选中文字，在“字体”工具栏中设置字体为“宋体”，字号为“20”；单击工具栏左侧的“...
