Modified Weibull distributionRecord valuesTakeover bids provide an option right to the target's shareholders; they guarantee the offered price but maintain the chance of higher offers. Using Option Pricing Theory (OPT) we estimate the probability and expected value of higher bids from target stock ...
Bayesian Inference and Life Testing Plan for the Weibull Distribution in Presence of Progressive Censoring This article deals with the Bayesian inference of unknown parameters of the progressively censored Weibull distribution. It is well known that for a Weibul... D Kundu - 《Technometrics》 被引...
Expected value of X = E(X) = μ = Population Mean of X = ∑∑=)()(x xf x xP Expected value of X = Weighted average of potential X values Var(X) = E(X-μ)2 = σ2 = Population Variance of X = ()()∑∑−=−)()(22x f x x P x μμ Expected squared deviation...
This paper considers the design of life-test sampling plans based on failure-censored accelerated life tests. The lifetime distribution of products is assumed to be Weibull with a scale parameter that is a log linear function of a (possibly transformed) stress. Two levels of stress higher than...
Watari et al. (2001) calculated the return periods of large SXR flares, solar energetic particle events and magnetic storms using the Weibull distribution. Riley (2012) estimated the occurrence probabilities of extreme events such as hard X-ray solar flares, high-speed coronal mass ejections (CM...
(xxfxxP ExpectedvalueofX=WeightedaverageofpotentialXvalues Var(X)=E(X-μ) 2 =σ 2 =PopulationVarianceofX=()() ∑∑ −=−)()( 22 xfxxPxμμ Expectedsquareddeviationfromaverage=Weightedaverageof(x-μ) 2 •Binomial oX=Numberoftimes“something”happensinnindependenttrialwithconstantprobability...
The problems of the Optimal robust Bayes estimation of Scale-Parameter for the Two-parameter Weibull distribution under the Type-Ⅱ censoring Life Test are discussed using theГ-posterior expected lossas the criterion. 以Г-后验期望损失作为标准,研究了定数截尾试验下两参数W e ibu ll分布尺度参数θ的...
The lightning parameters including current amplitude (), rise time (tf) and tail time (th) are estimated using a log-normal distribution as follows [20]: (1)where and are the standard deviation and average of x variable, respectively. The statistical value of lightning parameters has been ...
PDF (probability distribution function) of the wind generat ors availability .The PDF follows the Weibull distribution 【1 1- 1 3]. Unlike in the conventional generat ing units w hich usually have only tw o lev els : “o n’’fo r available st at e and “o ff ’fo r failure ...
serviceThe expected demand for service parts is easy to calculate, as long as their failure rate is constant. Certain service parts, however, have a failure rate that is time-dependent. If their failure times have a Weibull distribution, the simple calculation methods brake down and much ...