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

• 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。
• 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 type instance on the stack.
  堆栈上需要值类型实例。
• It compares the expected value to the actual value read from the event occurrence data to determine if duplicate events were consolidated.
  它会比较预期的值和从事件发生数据读取的实际值，从而判断是否整合了重复事件。
• 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。
• The expected value of the square of the deviations of a random variable from the point of origin.
  偏离原点的随机变量的偏差平方的期望值。
• 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。
• ( statistics) approximating the statistical norm or average or expected value.
  （统计学）接近统计的标准、平均数或预期值的。
• So perhaps you can steel yourself to follow decision theory and go for the higher expected value.
  因此，或许你可以让自己坚强起来，遵循决策论，追逐更高的预期价值。
• Expected value of a probability distribution
  一种概率分布的期望值