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

• ( 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。
• This would be unfortunate, however, because$ 10m is already the expected value of the asset.
  但这可真令人遗憾，因为1000万美元已经是该资产的预期价值。
• 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。
• 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。
• 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。
• 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？
• 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。
• 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。
• I come from a math background, I believe in expected value.
  我自己是学数学的，所以很相信期望值。