So the task duration is not a single real number, rather it is a random variable that describes the likelihood of completion within a certain range of time.
所以任务持续时间不是一个单一的实数，而是描述一定时间范围内完成的可能性的随机变量。
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 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。
"Those galaxies have no idea that you're there watching them, so it's just some random variable," Strauss says.
“这些星系完全不知道你正在观测它们，所以是一些随机的量，”施特劳斯说。
I have it down that there might be an infinite number of possible values for the random variable x.
对于这个随机变量X，可能的取值个数是无限的。
For example, the experiment could be tossing a coin, I will call the outcome heads the number one, and I'll call the outcome tails the number zero, so I've just defined a random variable.
比方说，抛硬币的试验，我将正面向上的结果对应数字1，反面向上的结果对应数字0，这样我就定义了一个随机变量。
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。
Instead of this single value, a random variable has a function that describes the likelihood of values for the estimate and is called the variable's probability distribution.
取代单个值，随机变量拥有描述估计值可能性的函数，该函数称为变量的概率分布。
To understand this, let us define the following random variable:.
为了理解这一点，让我们定义以下随机变量：。
When we observe one of these Numbers, we refer to the observation as a random variable.
当我们看到这些数字，我们指的是观察一个随机变量。
The convergence of the optimal value and optimal solution of the stochastic programming are given as the function sequence is epi-convergence and the random variable sequence is square convergence.
主要讨论了一类随机规划在函数序列上图收敛和随机变量序列均方收敛意义下，该类随机规划的最优解和最优值的收敛情况。
Based on the concept of fuzzy random variable, the concept of convex sets of fuzzy random vectors is introduced, and some examples for such type of convex sets are given.
在模糊随机变量的基础上引入了模糊随机向量凸集的概念，给出了几个模糊随机凸集的例子。
If you have an experiment and the outcome of the experiment is a number, then a random variable is the number that comes from the experiment.
如果你有一个试验，这个试验的结果是一个数，那么相对应的随机变量，指的就是这个试验结果所对应的那个数。
Shanghai stock composite index is treated as a random variable to carry on the forecast and makes the real diagnosis analysis.
将上证综合指数当作一个随机变量进行预测，并作了实证分析。
Thus is the range of random variable X and is the range of random variable Y and so forth.
因而，是随机变量X的范围和是随机变量Y的范围等等。
Random variable distribution functions and their inverse functions take an important role in probability theory.
随机变量的分布函数及其反函数在概率论中占有重要地位。
Solving the distribution of random variable function which is of great significance whether in theory or in application is an important question in probability theory.
求随机变量函数的分布是概率论中的一个重要课题，无论是在理论还是在应用上都有着十分重要的意义。
Data stream of network is random. Arrival time, length and processing time of data packet are random variable.
网络中的数据流是不确定的，数据包的到达时间、长度和处理时间都是随机变量。
Singular function is an important distribution function of the singular random variable. It is studied widely.
奇异函数是一极为重要的奇异型随机变量的分布函数，被广泛研究。
In this paper, we study the symmetry on distribution matrix of order statistic of discrete type random variable.
本文研究了离散型随机变量次序统计量的分布矩阵的对称性，获得了二个定理。
An estimator is a random variable.
估计量是一个随机变量。
Finally, the solution of the insurance fraud game, which the loss amount of insurance object is discrete random variable, is demonstrated.
最后，论证了保险标的损失额度为离散随机变量时夸大损失索赔欺诈博弈问题解的形式。
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。
Spatial variability theory is the theory of studying space variability of random variable.
空间变异理论是研究随机变量空间变异性的理论。
This article the compares the two kinds of different definitions of random variable distribution function and shows nature differences of distribution function in different definitions.
本文对随机变量分布函数两种不同定义进行了比较，指出了不同定义的分布函数其性质上的差异。
The random variable properties of total work time in the discrete stochastic manufacture systems are discussed.
并以此对离散随机制造系统总加工时间的随机变量性质进行讨论。
Mathematical expectation is one of the important digital features of random variable.
数学期望是随机变量的重要数字特征之一。
Kurtosis is a classical measure of non-Gaussianity of random variable.
峭度是随机变量非高斯性的一个经典度量。
Kurtosis is a classical measure of non-Gaussianity of random variable.
峭度是随机变量非高斯性的一个经典度量。
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