Gaokao Math Practice Question
下列统计量中, 能度量样本 $x_{1}, x_{2}, \cdots, x_{n}$ 的离散程度的是 ($\quad$)
- A.样本 $x_{1}, x_{2}, \cdots, x_{n}$ 的标准差
- B.样本 $x_{1}, x_{2}, \cdots, x_{n}$ 的中位数
- C.样本 $x_{1}, x_{2}, \cdots, x_{n}$ 的极差
- D.样本 $x_{1}, x_{2}, \cdots, x_{n}$ 的平均数
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