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List A: 0,5,10,15,20List B: 25,30,35,40,45Quantity A: The standard deviation o
List A: 0,5,10,15,20List B: 25,30,35,40,45Quantity A: The standard deviation o
游客
2025-02-23
32
管理
问题
List A: 0,5,10,15,20
List B: 25,30,35,40,45
Quantity A: The standard deviation of List A
Quantity B: The standard deviation of List B
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
通过观察可知,List A中每个数都加上25之后,变为List B。于是利用定量推论(1),两组数据的标准差相同。
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