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

计算机化学

英英释义

noun

• a variable quantity that is random
  Synonym:variatevariantstochastic variablechance variable

双语例句

• An estimator is a random variable.
  估计量是一个随机变量。
• 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。
• In this paper, we study the distribution law of order statistic of discrete type random variable.
  本文论述了离散型随机变量的次序统计量的分布律及其有关推论。
• 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。
• The weighted mean of the random variable is the expected value.
  随机变量的加权平均值是期望值。
• The variance of a random variable measures how far from the expected value its values typically are.
  随机变量的方差衡量随机变量值与期望值偏离的程度。
• 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。
• A class of discrete type random variable probability distributions, called negative geometric distribution and negative hypergeometric distribution, are discussed.
  本文研究了一类离散型随机变量的概率分布，称之为负几何分布和负超几何分布。
• 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。