在选择数据的访问路径时，如果没有正确的列分布统计数据，DB 2可能没有足够的信息来做出最佳的选择，尤其是如果数据出现严重误差。
Without correct column distribution statistics, DB2 may not have enough information to make the best choice when choosing an access path to the data-especially if data is heavily skewed.
量子测量中精度的标准极限，源于与可计数离散粒子，而不是连续量相关的统计误差。
The standard limit on the precision with which a quantum measurement can be carried out is due to the statistical error associated with counting discrete particles rather than continuous quantities.
各向异性系数的准确度主要取决于探测器计数的统计误差。
The accuracy of anisotropic coefficient mainly depends on the statistical error of the counting.
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