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$$R_1$$: -3, -2, -1
$$R_2$$: 1, 2, 3
$$R_3$$: -3, -2, -1, 1, 2, 3
The standard deviations of the numbers in the lists $$R_1$$, $$R_2$$, and $$R_3$$ are $$s_1$$, $$s_2$$, and $$s_3$$, respectively. Which of the following is true?
$$R_2$$: 1, 2, 3
$$R_3$$: -3, -2, -1, 1, 2, 3
The standard deviations of the numbers in the lists $$R_1$$, $$R_2$$, and $$R_3$$ are $$s_1$$, $$s_2$$, and $$s_3$$, respectively. Which of the following is true?
B显示答案
· 相关考点
5.2.9 标准差
5.2.9 标准差
以上解析由 考满分老师提供。
