random variable

常見例句

雙語例句

• A random variable is a function that takes values based on a probability distribution.
  隨機變量是一個根據(jù)概率分布取值的函數(shù)。
• A random variable, such as time in the example above, is associated with properties that are different from those associated with a single value.
  隨機變量，如上例中的時間， 與一些特性相關(guān)，這些特性不同于那些與單個值相關(guān)的特性。
• So the task duration is not a single real number, rather it is a random variable that describes the likelihood of completion within a certain range of time.
  所以任務持續(xù)時間不是一個單一的實數(shù)，而是描述一定時間范圍內(nèi)完成的可能性的隨機變量。

原聲例句

• If you have an experiment and the outcome of the experiment is a number, then a random variable is the number that comes from the experiment.
  如果你有一個試驗,這個試驗的結(jié)果是一個數(shù),那么相對應的隨機變量,指的就是這個試驗結(jié)果所對應的那個數(shù)
  耶魯公開課 - 金融市場課程節(jié)選
• For example, the experiment could be tossing a coin, I will call the outcome heads the number one, and I'll call the outcome tails the number zero, so I've just defined a random variable.
  比方說,拋硬幣的試驗,我將正面向上的結(jié)果對應數(shù)字1,反面向上的結(jié)果對應數(shù)字0,這樣我就定義了一個隨機變量
  耶魯公開課 - 金融市場課程節(jié)選
• I have it down that there might be an infinite number of possible values for the random variable x.
  對于這個隨機變量X,可能的取值個數(shù)是無限的
  耶魯公開課 - 金融市場課程節(jié)選
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