statistics normal distribution 中文意思是什麼

statistics normal distribution 解釋
量度分佈
  • statistics : n. 1. 統計學，統計法〈用作單數〉。2. 統計數字[資料]，統計表〈用作復數〉。
  • normal : adj 1 正常的，平常的，普通的；平均的。2 正規的，標準的，額定的，規定的。3 智力正常的，精神健全的...
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. Standard deviation in statistics, a measure of the dispersion of a frequency distribution : it is the average magnitude of deviations from the center of normal curve, calculated by squaring all the deviations, calculating their mean, then finding the square root of the mean

    標準偏差：統計中，一種衡量數據組分佈的分散或變化情況的數據，是偏離正態分佈中間位置數據大小的平均值。
  2. The third part : according to the verified structural damage identification method and supposing the to - be identified parameters to be independent and have normal distribution, the scheme of identifying bridge structure damage is proposed by using the probability damage identification method. assume the zero - order, the first - order and the second - order perturbation statistics of the frequencies and the mode shapes of the bridge structures are known, and substitute them into the statistics property formulas of the frequencies and the mode shapes, as a result an objective function including the mean values and the variance of all the identified parameters is established. set

    對于連續梁橋，當損傷位置位於跨中附近時，大多數無損傷單元的損傷概率均在10 %左右，可作為小概率事件，不發生損傷，但與損傷單元相鄰的無損傷單元，其損傷概率達到20 %以上，很難被排除，只有對這些單元進行二次識別，才能得到比較可靠的計算結果;如果損傷位於支點附近時，則不會出現上述情況，對于無損傷單元，損傷概率都小於10 % ，不發生損傷，損傷識別結果
  3. The application of statistics function of excel may simplify complicated binomial distribution probability counting and normal distribution probability counting, and at the sme time, many statistics functions can be connected together with some counting signs to make statistics analysis process which can be applied to much more complicated statistics counting and analysis

    摘要利用excel的統計函數可以使復雜的二項分佈概率計算和正態分佈概率計算變得簡單，同時，可以利用計算符號把多個統計函數連接起來，製成統計分析程序，用於比較大的復雜的統計計算和分析。
  4. In pool trial, the author compare the real - time results with the post processing results, which enhance the precision of velocity measurement. and we process the trial data using statistics methods, achieving that velocity measurement error is normal distribution

    在多普勒計程儀水池試驗部分，對實驗數據進行了後置處理，提高了測速精度，並對數據進行了統計處理，得出測速誤差呈正態分佈的結論。
  5. And use relative fitting error to measure statistical data non - uniform error ; then introduce the method systematically of using the fuzzy comprehensive evaluation method to carry on the overall superior test of the government statistical data quality. includes the establishment of step level appraisal target system, target weight determination, calculates the factor weight in various levels, uniform test of judgment matrix, and built up the final fuzzy comprehensive evaluation model of the government statistical data quality according to the above - mentioned standard ; finally selects the partial main social economy total quantity target from chinese statistics yearbook 2003 to carry on the real diagnosis analysis : ( 1 ) confirm these social economy total quantity targets using the description statistics and the k - s inspection method to obey the lognormal normal distribution. ( 2 ) according to the two levels of inspection methods which this article proposed to carry on accuracy and the overall superior test for these social economy total quantity targets

    本文首先從統計數據及質量的涵義出發，全面系統的介紹了統計數據質量的概念;其次，從研究統計數據的分佈規律入手，對統計數據準確性檢驗問題進行了探討，利用對數正態分佈檢驗對反映研究對象規模大小的統計數據的質量及異常數據進行定量檢查和識別，並利用相對擬合誤差計量統計數據的非一致性誤差;接著系統介紹了利用模糊綜合評價方法對政府統計數據質量進行整體優度檢驗的思路，具體包括建立遞階層次的評價指標體系，指標權重的確定，計算各層次中因素的權重，判斷矩陣的一致性檢驗，並根據上述標準建立了最終的政府統計數據質量模糊綜合評價模型;然後通過從2003年中國統計年鑒資料中選取部分主要的社會經濟總量指標進行實證分析: （ 1 ）利用描述統計和k - s檢驗法來驗證這些社會經濟總量指標服從對數正態分佈的規律; （ 2 ）按照本文提出的二級檢驗法來對這些社會經濟總量指標進行準確性和整體優度檢驗，從而達到綜合評價政府統計數據質量的目的;最後對這種二級檢驗法的優點和不足進行小結，提出今後應該努力改進的方向。
  6. On the assumption that imagery pixel follows non - normal distribution in high resolution imaging, a new method of phase errors estimation based on higher - order statistics is proposed for sar imagery autofocusing

    在高分辨成像情況下，基於圖像像素強度服從非高斯分佈的假設，提出了一種基於三階累積量的自聚焦方法。
  7. In the paper, the main results are brought forth in five aspects as follows : ( 1 ). the analysis of statistics the characteristic indicated that the variation coefficient of the soil nitrogen density of 0 ~ 30cm depth is lower, the variation coefficient is only 3. 6 %, the variation coefficient of the nitrogen density of 0 ~ 100cm depth is much bigger than that the 0 ~ 30cm depth, it is 100 %. based on the second national soil general survey material, the average soil profile depth is 101cm, this is in corresponding with skew normal distribution, its standard deviation is 0. 0192

    通過研究，得到以下認識與結果： （ 1 ）統計特徵分析表明， 0 30cm厚度土壤氮密度的變異系數較低，為3 . 6 ， 0 100cm厚度的氮密度的變異系數相對于來說就很大，為100 ；全國土壤剖面深度平均為101cm ，符合偏正態分佈，標準方差為0 . 0192 ； 0 30cm厚度土壤氮密度服從對數正態分佈，而0 100cm厚度土壤氮密度基本服從偏正態分佈。
  8. The statistics of crack widths and fracture intervals can satisfy normal distribution

    正常使用狀態下構件的撓度也能夠滿足規范限值要求。
  9. Abstract : the paper mainly introduces how to optimize the existed filtration method with statistics normal distribution and quadrature optimization, which make the optimized filtration method economic 、 time saving and effective

    摘要：主要介紹了如何利用正態分佈和正態優化對現有的篩選方法進行優化，從而使優化后的篩選方法在達到預期篩選目的的情況下做到最經濟，省時和有效。
  10. From the point of financial asset value movement ' s statistics, the paper analyses statistical characters and methods of security portfolio market risk, such as geometrical brownian motion, stochastic wandering model, and normal distribution, which depict the motion of stock ' s price. the paper indicates fluctuation and relativity are issue of statistical object

    論文首先從金融資產價值運動的統計理論角度，系統分析了證券投資市場風險的統計特徵和統計方法，如描述股票價格運動的幾何布朗運動、隨機遊走模型、以及正態分佈等，指出了描述證券投資市場風險的重要統計對象是組合資產價值的波動性和相關性。
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