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题目内容
The standard deviation of n numbers $$x_{1}$$, $$x_{2}$$, $$x_{3}$$,......, $$x_{n}$$, with mean x is equal to $$\sqrt{\frac{s}{n}}$$, where S is the sum of the squared differences, $$(x_{i}- x)^{2}$$ for 1 ≤ i ≤ n.
List S: 3, 4, 7, 9, 10, 15
For which of the following lists is the standard deviation of the numbers in the list equal to 4 times the standard deivation of the numbers in list S?
Indicate all such lists.
List S: 3, 4, 7, 9, 10, 15
For which of the following lists is the standard deviation of the numbers in the list equal to 4 times the standard deivation of the numbers in list S?
Indicate all such lists.
B,C显示答案
· 相关考点
5.2.8 标准差
5.2.8 标准差
以上解析由 考满分老师提供。
