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List A: 10, 11, 15, 19,20 List B: 10, 14, 15, 16,20Quantity A: The standard dev
List A: 10, 11, 15, 19,20 List B: 10, 14, 15, 16,20Quantity A: The standard dev
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2025-02-23
23
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问题
List A: 10, 11, 15, 19,20 List B: 10, 14, 15, 16,20
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
A
解析
通过观察可知,List A和List B的平均值都是15。两个数列中10、15、20这三个数是一样的,只需要比较剩下的数字和平均值的远近,易发现List B中14和16距离平均值15更近,List A中11和10距离15更远。所以List A标准差更大。
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