Background: The highly conservative nature of Chebyshev's inequality, with its advantages and disadvantages, calls for an additional approach to the event probability of an individual event across various distributions. Materials and Methods: This investigation commences with the theoretical foundations of...
probability n. 1.[U]可能性,或然率 2.[U]几率,概率 3.[C]可能的结果 distribution n. 1.分发,分配 2.散布,分布 3.分配;分布 4.(商品)运销,经销,分销 5.按比例分配;分配法;分发方式 6.分配物,配给物;分发物 7.布置,配置,位置 time variance 时间变异 mean variance 均方,方差 probability11...
probabilityn. 1.[U]可能性,或然率 2.[U]几率,概率 3.[C]可能的结果 distributionn. 1.分发,分配 2.散布,分布 3.分配;分布 4.(商品)运销,经销,分销 5.按比例分配;分配法;分发方式 6.分配物,配给物;分发物 7.布置,配置,位置 time variance时间变异 ...
Variance measures the degree of spread in a data set from its mean value. It shows the amount of variation that exists among the data points. Visually, the larger the variance, the "fatter" aprobability distributionwill be. In finance, if something like an investment has a greater variance,...
Using the variance, we can apply Chebyshev's inequality to compute an upper bound on the probability that the currently shaded surface (at depth t) is occluded:This "one-tailed" version of Chebyshev's inequality is valid for t > . If t m, p max = 1 and the surface is ful...
我们要使总误差最小,就要想办法减少偏差和方差,因为最后一项是无法减少的。 现在让我们来看一下偏差和方差到底是什么。 偏差(bias)是指由于错误的假设导致的误差,比如说我们假设只有一个自变量能影响因变量,但其实有三个;又比如我们假设自变量和因变量之间是线性关系,但其实是非线性关系。其描述的是期望估计值和真实...
When we know the probability p of every value x we can calculate the Expected Value (Mean) of X:μ = ΣxpNote: Σ is Sigma Notation, and means to sum up.To calculate the Expected Value:multiply each value by its probability sum them up...
Print Also known as: cumulative distribution function, probability distribution Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that cont...
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statistics- a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters multivariate analysis- a generic term for any statistical technique used to analyze data from more than one variable ...