expectation variance 中文意思是什麼
expectation variance
解釋
期望值方差- expectation : n. 1. 期待，期望；所希望的東西。2. 〈pl. 〉 前程，（發跡，繼承遺產的）希望。3. 估計。4. 期待療法。5. 【數學】期望值。
- variance : n. 1. 變化，變動，變更；變度，變量；【統計】（平）方（偏）差。2. （意見等的）相異；不和，沖突，爭論。3. 【法律】訴狀和供詞的不符。
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( 3 ) usevpq. dll : common statistical distribution library provides methods of getting the expectation, variance ^ probability and quantile of 10 kind of statistical distribution
Dll ：常用數理統計分佈的工具庫提供了計算十種常用統計分佈的期望、方差、函數值、分位點的方法。 -
Mathematical expectation and variance of random variable with fuzzy probability
模糊概率隨機變量的數學期望和方差 -
The other one is the cause of institutional variance, which is expectation of latent maxim benefit
二是制度變遷的誘致因素在於主體期望獲取最大的潛在利潤。 -
Some normalization methods are discussed in detail, including histogram method, expectation - variance method and trend surface analysis
這里詳細介紹了各種測井數據標準化的方法原理，並給出了相應的實例。 -
This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave
本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。 -
This article tells us how to use probability generating function to find the expectation and variance of super geometry distribution
摘要本文介紹如何運用概率母函數來求超幾何分佈的期望和方差。 -
Study work mainly is : part one, look back and look ahead the financial development history and present situation that derives market and the futuristic tendency, summarize domestic and international theory and method about venture capital investment, discuss establishment and develop the financial necessariness and important meaning of our country that derives market ; part two, establishthe relation between investment risk and the radom expectation effectiveness of investor ? verage stochastic dominance of asset profit ; part three, covari - ance matrix in mean - variance model is analysed with sensitivity analysis and fuzzy analysis ; part four, have looked back the concept of option, the price relation of option and black - scholes option price formula, have put forward option price formula of the discounted value of option present value ; part five, have looked back the financial concept and its classfication that financial derivatives risk, have summarized financial risk management theory, measured and assessed methods of financial derivatives risk
主要研究工作為：第一章，回顧和展望金融衍生市場的發展歷史、現狀和未來，綜述國內外關于風險投資的理論與方法，論述建立和發展我國金融衍生市場的必要性及重要意義；第二章，建立投資者的隨機期望效用與投資風險之間的關系? ?平均隨機占優；第三章，均值方差模型協方差矩陣的靈敏度分析與模糊分析；第四章，回顧了期權的概念、期權的價格關系和black - scholes期權定價公式，提出了歐式看漲期權價格的折現值所滿足的微分方程；第五章，回顧了金融衍生品風險的概念及其分類，總結了金融衍生品的風險管理理論和金融衍生品風險計量和評估方法。 -
In this paper, we discussed the procedures of quantiles, maximum - likelihood, probability weighted moments, moments, least square, the best linear unbiased estimate, good linear unbiased estimation, and the best invariant estimate to the parameters of gumbel distribution, then give out the expectation and variance - covariance respectively. we compared the statistical behavior of these eight estimate procedures not only theoretically but also in the monte - carlo simulation
本文利用分位數法、極大似然法、概率加權矩法、矩法、最小二乘法、最佳線性無偏估計法、簡單線性無偏估計法、最好線性同變估計法對gumbel分佈中的參數進行估計，分別給出了這八種估計量的期望、方差和協方差。 -
A discrete probability distribution named as distribution of exponential difference is presented in this paper, formula to calculate the most probable success number, mathematical expectation and variance are derived for this distribution, relationship between this distribution and geometric distribution is discussed, a application of this distribution in markovian chain is given
摘要本文提出了一個離散型概率分佈：指數差分佈，推導了該分佈的最可能成功次數、數學期望和方差，探討了該分佈與幾何分佈的關系，給出了該分佈在馬爾可夫鏈模型中的應用。 -
In 1952, h. m. markowitz published an article called " asset selection : efficient decentralization of investment ". he adopted the expectation yield of risk asset, and, at the same time. adopted variance ( or standard deviation ) which represents risk, for the study of selection and combination of asset. this is called the jumping - off point of the modern times asset combination theory by financial circles. after then, william. f. sharpe advanced capital asset pricing model. the study of modern tunes asset combination theory in our country began in 1990 when markowitz and sharpe gained the nobel prize, such as fei fang yu ( 1994 ) and bei duo guang ( 1996 ) published several kinds of bookmakings which introduced modern times asset combination theory, simultaneity, yang gui yuan ( 1995 ), tang xiao wo ( 1994 ) published several articles which discussed the ways how to comformate efficient asset combination in modern times asset combination theory
之後，威廉?夏普（ william . f . sharpe ）又提出了資本資產定價模型。我國對現代資產組合理論的研究是從1990年馬柯維茨和夏普等人獲得諾貝爾經濟學獎開始的，如費方域（ 1994 ）和被貝多廣（ 1996 ）等出版了幾種介紹現代資產組合理論的著作。楊桂元（ 1995 ） 、唐小我（ 1994 ）等發表了不少討論現代資產組合理論中構造有效資產組合理論方法的文章。 -
In this method, a new perturbation technique called linearization - correction method was used to linearize the nonlinear equations in the model, and then the wavelet precise integration method was used to calculate the sensitivity of the response. at last the stochastic perturbation method is used to analyse the variance and expectation of sediment concentration, rate and depth of flow. the calculated result was high agreement with that result of monte carlo method
在該方法中，採用了一種擬攝動法對模型中的非線性方程進行線性化，然後採用小波配置法對模型方程進行空間離散，最後用隨機有限元方法求得模型中水流速度，水深和泥沙濃度的統計特性，計算結果和montecarlo法模擬結果吻合得很好。 -
2. a characterization of the minimal polynomials generated a sequence with given minimal period is proved, the distribution of the linear complexity of periodic sequences is shown, and a new solving process of mathematical expectation and variance of linear complexity of periodic sequences is presented. randomness of minimal periodic sequences is discussed
給出生成給定最小周期序列的極小多項式的一個充分和必要條件；給出一般有限域上周期序列的線性復雜度的分佈，並給出其數學期望和方差的一個新的求法，討論了最小周期序列的隨機性。 -
In the fifth one, the paper makes clear the development mechanism of military and local bi - interest from the government ’ s leading role, army ’ s body status and company ’ s load bearing function, and establishes the stimulative model of socialization of military diet support, based on the theory of mathematical expectation and variance of random variable
第五章從政府的主導作用、軍隊的主體地位、企業的承載作用出發，明確了軍地「雙贏」的發展機制，並在隨機變量的數學期望與方差理論的基礎上建立了軍隊飲食保障社會化的激勵模型。
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