All these quantities describe important properties of random variables, although, in general, they do not determine the complete distribution. The expectation of a continuous real-valued random variable can be computed using its density f Y with respect to the Lebesgue measure and the Riemann ...
aIt remains the basis for any further corrupt behavior, whether it is in business or in public administration. The origin of any act of corruption is the fact that some basic principles have become corrupt. 它其中任一进一步保持为腐败行为的依据,它是否在事务或在公共事务管理。 腐败所有行动的起源...
例句：The expectation of a random variable is its average value.（随机变量的期望值是它的平均值。）3.期望的结果：例句：The team had high expectations for the upcoming competition.（团队对即将到来的比赛寄予厚望。）4.文化和社会期望：例句：There are certain societal expectations regarding behavior in ...
3、Mathematical expectation is one of the important digital features of random variable. 数学期望是随机变量的重要数字特征之一。 4、The job failed to measure up to her expectations. 这项工作没有满足她的期望。 5、In the end you have to readjust your expectations. 最后你得调整你的期望值。
这里利用到了指数分布的无记忆性 Given A Random Variable 前面提到的都是给定A是一个event所得到的条件期望,那如果A是一个随机变量又当如何呢 Let g(x) = E(Y |X = x). Then the conditional expectation of Y given X, denoted E(Y |X), is defined to be the random variable g(X). In other...
The conditional expectation (or conditional expected value, or conditional mean) is the expected value of a random variable, computed with respect to a conditional probability distribution. A pragmatic approachAs in the case of the expected value, a completely rigorous definition of the conditional ...
This chapter focuses on the expectation of random variables, particularly the expectation of elementary random variables. It presents proofs of the Lebesgue's theorem on monotone sequences and the Lebesgue's theorem on term by term integration. The chapter discusses signed measures and the Radon–Nik...
In probability and statistics, the expectation or expected value, is the weighted average value of a random variable.
Expected value or expectation of a random variableXis defined, if it exists, in a mathematically precise way with respect to a probability space, typically denoted as(Ω,A,P), whereΩis the universe of possibilities,Athe set of possible events (which are the possible values of the random va...
the sum of the values of a random variable divided by the number of values相似短语 in expectation adv.期望着 in expectation of 期待,盼望… in the expectation that ... 期待,盼望… be on the tiptoe of expectation v. 翘首以待,殷切期望 expectation set 期望定向 expectation theory 预期理论...