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分析测定中的偶然误差,就统计规律来讲,以下符合的是( )

多选题
2022-04-02 15:34
A、数值固定不变
B、大误差出现的概率小,小误差出现的概率大
C、数值随机可变
D、绝对值相等的正、负误差出现的概率均等
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正确答案
BCD

试题解析
无.

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