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【单选题】
标准偏差的大小说明A.
数据的分散程度
B.
数据与平均值的偏离程度
C.
数据的大小
D.
数据的集中程度
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A.
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A.
在研究中不珍惜动物资源
B.
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C.
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A.
True
B.
False
C.
Blank 1
D.
Blank 2
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