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

• 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 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；
• There are significant difference in Efficiency, Quality, Cost, Service value between expected value and perceived value.
  其中游客在游览前后对效率价值、质量价值、成本价值、服务价值的认知存在显著差异。
• Build a regular expression that describes the expected value format and put it in the pattern attribute.
  构建一个说明所期望值格式的正则表达式，并将其放到pattern属性中。
• The expected value itself very rarely can help us.
  期望值本身很难帮助我们。
• What is the expected value of these risks?
  这些风险的预期值是多少？
• Good development governance practices enable organizations to determine the extent to which development investments deliver on their expected value.
  好的开发治理实践能够让组织决定开发投资对其预期值的交付程度。
• 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；
• The difference between an observed value and the expected value of a variable or function.
  一个受控变量的实际值和对应于给定的期望值之差。
• In particular, reinterpretation of the growth rate in terms of some form of expected value is required.
  特别是，重新解释的成长在一些形式上的预期值率是必需的。