常見(jiàn)例句雙語(yǔ)例句A random variable is a function that takes values based on a probability distribution.隨機(jī)變量是一個(gè)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(jī)變量，如上例中的時(shí)間， 與一些特性相關(guān)，這些特性不同于那些與單個(gè)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(wù)持續(xù)時(shí)間不是一個(gè)單一的實(shí)數(shù)，而是描述一定時(shí)間范圍內(nèi)完成的可能性的隨機(jī)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(gè)試驗(yàn),這個(gè)試驗(yàn)的結(jié)果是一個(gè)數(shù),那么相對(duì)應(yīng)的隨機(jī)變量,指的就是這個(gè)試驗(yàn)結(jié)果所對(duì)應(yīng)的那個(gè)數(shù)耶魯公開(kāi)課 - 金融市場(chǎng)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(shuō),拋硬幣的試驗(yàn),我將正面向上的結(jié)果對(duì)應(yīng)數(shù)字1,反面向上的結(jié)果對(duì)應(yīng)數(shù)字0,這樣我就定義了一個(gè)隨機(jī)變量耶魯公開(kāi)課 - 金融市場(chǎng)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(duì)于這個(gè)隨機(jī)變量X,可能的取值個(gè)數(shù)是無(wú)限的耶魯公開(kāi)課 - 金融市場(chǎng)課程節(jié)選 返回 random variable