The upper bounds for the variance of a function g of a random variable X obtained in Cacoullos (1982) (for short CP) are improved in the case μ = E( X) ≠ 0. A main feature of these bounds is that they involve
Suppose a continuous random variable x has the probability density function f(x) given below: f(x)={0x≤02xR20<x<R0otherwise Find the variance of the function. Variance of random variable Variance is a terminology that takes root from the term vary. Regarding data points, it means varia...
variance of a random variable 随机变量的方差 dispersion of a random variable 随机变量的离差 random variable 随机变量,随机变数 random value variance 随机值变化 variable overhead quantity variance 【经】 可变间接费用数量差异 variable overhead price variance 【经】 可变间接费用价格差异 variable ...
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In probability and statistics, the variance of a random variable is the average value of the square distance from the mean value.
网络随机变量的方差 网络释义 1. 随机变量的方差 variance的翻译中文意思-在线英汉词典 ...variance of a random variable随机变量的方差variance of distribution 分布方差 ... www.chinabaike.com|基于3个网页 例句
When the random variable isdiscretethe above formula becomes where: is the set of all possible realizations of (called thesupportof ); is theprobability mass functionof ; the notation indicates that we need to perform a sum over all the values that ...
Distribution function Thedistribution functionof a Chi-square random variable is where the function is calledlower incomplete Gamma functionand is usually computed by means of specialized computer algorithms. Proof Usually, it is possible to resort to computer algorithms that directly compute the values ...
They are entirely different from the traditional analysis ofvarianceand Bartlett method in function. 文中还给出一种多母体异方差检验方法,能够检验多个正态母体是否具有某种不同的方差. 期刊摘选 Investigation was made on activityvarianceand deactivation of reforming catalyst. ...
Conditional Expectation as a Function of a Random Variable: Remember that the conditional expectation of XX given that Y=yY=y is given by E[X|Y=y]=∑xi∈RXxiPX|Y(xi|y).E[X|Y=y]=∑xi∈RXxiPX|Y(xi|y). Note that E[X|Y=y]E[X|Y=y] depends on the value of yy. In othe...