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单词
probable error
释义
WordReference Random House Unabridged Dictionary of American English © 2024
prob
′
able er
′
ror,
[
Statistics.
]
Statistics
a quantity formerly used as a measure of variability: equal to 0.6745 times the standard deviation. A normally distributed population has half of its elements within one probable error of the mean.
1805–15
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更新时间:2025/8/1 5:51:59