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。
• 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。
• 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。
• Study and Application of DEA Model Based on the Expected Value
  基于期望值的DEA模型研究及应用
• 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。
• The measure of the difference between the mean value and some maximum expected value for a particular data reading.
  一个特定数据的读取中，对平均值与某种最大期望值之间的差的度量。
• What is the expected value of these risks?
  这些风险的预期值是多少？
• 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。
• You need some way of establishing the expected value for the decrypted message, for one thing.
  首先，您需要使用某种方法为解密消息确立预期值。
• 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。