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Quantity A: The standard deviation of the numbers 45, 64, 83, and 53Quantity B:
Quantity A: The standard deviation of the numbers 45, 64, 83, and 53Quantity B:
游客
2024-01-12
40
管理
问题
Quantity A: The standard deviation of the numbers 45, 64, 83, and 53
Quantity B: The standard deviation of the numbers 55, 81, 47, and 62
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
45=47-2,53=55-2,64=62+2,83=81+2,由此可见Quantity A和Quantity B两个数列平均值相等,而Quantity A数列中的数与平均值差距更大。故答案为A。
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