random variable
英 [ˈrændəm ˈveəriəbl]
美 [ˈrændəm ˈveriəbl]
网络 随机变量; 随即变量; 隨機變數; 随机变数; 变数
英英释义
noun
- a variable quantity that is random
双语例句
- In our notation, the name of a random variable is always a capital letter, for example, X.
在我们的记法，一个随机变量的名字总是一个大写字母，例如，X。 - A random variable is a function that takes values based on a probability distribution.
随机变量是一个根据概率分布取值的函数。 - The sum of the values of a random variable divided by the number of values.
随机变数数值之和除以其数量。 - A stochastic scheduling model for hydrothermal power systems is presented based on fuzzy chance constrained programming, taking reservoir inflow and water level for a random variable.
针对水火电力系统运行调度中所包含的不同种类的不确定量，提出了一种基于模糊随机机会约束规划的短期水火电力系统多目标优化调度模型。 - The disk structural reliability is calculated by use of Monte Carlo Simulation ( MCS) techniques and Response Surface Method ( RSM). The random variable sensitivity is also analyzed.
分别采用蒙特卡罗法和响应面法计算了轮盘结构可靠度，并对其随机性的影响因素进行了灵敏度分析。 - This paper presents a reliability design method for fatigue strength of steam turbine parts subjected to alternating and mean stess with random variable stress ratio.
本文介绍了应力幅和平均应力之比为随机变量时汽轮机零件疲劳强度的可靠性设计方法。 - A random variable, such as time in the example above, is associated with properties that are different from those associated with a single value.
随机变量，如上例中的时间，与一些特性相关，这些特性不同于那些与单个值相关的特性。 - Some Discussions on Expectation and Variance of Random Variable
关于随机变量数学期望与方差的讨论 - This paper, taking the two-dimensional separate random variable as an example, produced the mutually independent distinctions method for separate random variable, and made a comparison between them.
以二维离散型随机变量为例，给出了离散型随机变量相互独立的几个判别方法，并对其进行了比较。 - In the model, shortages are allowed and the backorder rate is a random variable.
存货系统中允许缺货发生且为部分欠拨，欠拨为一随机变。