| 释义 |
mathematical expectation ˌmæθiˈmætikəlˌekspekˈteiʃən 短语⁹⁶⁶⁷⁷⁺⁶
基本例句
数学的期望值
Based on the statistic characteristic of random errors, the mathematical expectation, variance and mean square error of the parameter estimator getting from this method are discussed in detail.
从偶然误差的统计特征出发，详细讨论这种平差方法得到的参数估值的一些统计性质，并对半参数平差与最小二乘法的参数估计值进行比较。 cnki
This paper discusses the probability of the different butterfly investors' profiting and mathematical expectation of its profit function.
本文探讨了不同蝶状价差投资者的获益概率及其平均损益。 cnki |