Statistics histogram data processing scheme is designed. Standard deviation of frequency modulation is found out according to normal distribution characteristics.
设计了统计直方图数据处理方案，按照正态分布的特性找出了寄生频率调制的标准偏差。
Empirical evidences show that the distributions of high frequency time series are "fat tail" type distribution rather than normal distribution with "light tail" as those in traditional modeling.
经验表明高频时间序列的分布常是“肥尾”型的，而非传统建模中的“薄尾”型的正态分布。
Objective and Methods: We tested the frequency distribution and the range of normal values of the sialic acid concentration in 386 normal human serum samples by chemical colorimeter.
目的与方法：本文采用化学比色法观察了386例正常人血清唾液酸的频率分布与正常值范围。
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