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Quantity A: the standard deviation of x-3, x-2, x-1, x, x+1, x+2Quantity B: the
Quantity A: the standard deviation of x-3, x-2, x-1, x, x+1, x+2Quantity B: the
游客
2025-02-23
25
管理
问题
Quantity A: the standard deviation of x-3, x-2, x-1, x, x+1, x+2
Quantity B: the standard deviation of y-3, y-2, y, y+1, y+2
选项
A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案
C
解析
利用standard deviation的性质,两个序列的标准方差都和-3,-2,-1,0,1,2相同,因此选择C。
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