上面我们讲的都是有限个离散分布的情况,当X是无限的时候其实也可以求期望,也就是求所有可能的值的加权平均数 Definition Mean of General Discrete Random Variable. Let X be a discrete random variable whose p.f. is f.Suppose that at least one of the following sums is finite: ∑Positivexxf(x),∑N...
title: 【概率论】4-1:随机变量的期望(The Expectation of a Random Variable Part II) categories: - Mathematic - Probability keywords: Expectation toc: true date: 2018-03-22 09:09:37 Abstract:本篇介绍期望的第二部分,关于随机变量的函数的期望 Keywords:Expectation 开篇废话 本来这篇可以和前一篇合在...
a或者叫我捷克 Or is called me Czechoslovakia[translate] 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...
In anticipation of probable results, Thorndike amends his statement on expectation: "Whatever be the nature of an animal's expectation, its potency will depend mainly, perhaps entirely, on its connections."G.P. Beaumont BSc, MA, MScProbability and Random Variables...
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 ...
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 ...
Chapter4Expectation4.1The Expectation of a Random Variable4.2Properties of Expectations4.3Variance4.4Moments4.5The Mean and the Median4.6Covariance and Correlation4.7Conditional Expectation4.8Utility4.9Supplementary Exercises4.1 The Expectation of a Random VariableThe distribution of a random variable X contains ...
声音简介 The expected value of a random variable is to be interpreted as the average that you expect to see in a large number of independent repetitions of the experiment. The expected value of g of X, is the same as g of the expected value of X. ...
1) expect,expectation(of a random variable or of a probability distribution) 期望(随机变量或概率分布的) 2) Tail probabilities of I.I.D. random variables 独立同分布随机变量的尾概率 3) expected value of random variables 随机变量的期望值
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...