expected value

英 [ɪkˈspektɪd ˈvæljuː]

美 [ɪkˈspektɪd ˈvæljuː]

期望（预期）值

计算机化学

英英释义

noun

• the sum of the values of a random variable divided by the number of values
  Synonym:arithmetic meanfirst momentexpectation

双语例句

• On an expected value basis, the obvious decision was to stick with finance.
  若按常人的观点，很显然，我应该坚持做我的金融。
• Expected value of a probability distribution
  一种概率分布的期望值
• The problem is formulated as expected value model, and the objective function is to minimize the setup costs, production costs and inventory holding costs.
  建立了问题的期望值模型，目标函数为极小化生产准备成本、生产成本、库存成本的期望值。
• A new method to count the expected value and variance of time dispersion is presented for time dispersion of underwater optical wireless communication.
  给出了一种计算水下无线光通信中时域展宽的均值和方差的新方法；
• So how do you calculate the expected value for your investment in a tool?
  那么如何计算投资某种工具的期望值？
• Depending on what the expected value is, that could be trillionths or it could be millions.
  根据期望值不同，这个值可以是万亿分之一，也可以是数百万。
• Besides, a set of survey data is analyzed in this method from the aspects of traditional "Expected Value Theory" and "Prospect Theory" correspondingly.
  从传统的期望效用理论和前景理论两个方面，对一份关于出行者路径选择的调查数据进行了分析；
• Instead, treatments designed to modify the expected value of the drug or food type may prove more effective.
  相反，成瘾性的治疗旨在改变药物或食物种类预期价值的，也可能证明有更多有效性。
• If the start of the banner matches the expected value, the resource is considered to be online.
  如果横幅的开头与期望值匹配，则认为该资源已联机。
• 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。