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《Journal of Southwest China Normal University(Natural Science Edition)》 2007-06
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An Approximate Calculation Method for Two Variable Correlation Coefficients in Uncertainty Evaluation of Physical Experiments

SHONG Xiang-jiong Department of Physics and Electron Information,Shaoxing College of Liberal Arts and Sciences,Shaoxing Zhejiang 312000,China  
The relationship between two variables can be regarded as the addition of identity,discrepancy and contrary between two correlation coefficients in certain degree.Thus,it can be used that the Identity-Discrepancy-Contrary(IDC) connection number of the two variables to replace approximately the correlation coefficients of them.Therefore the complicated calculating of correlation coefficients in uncertainty evaluation of physical experiments is simplified.In the meantime,the calculation provides a new idea of the construction analysis of the correlation coefficients from the micro angle and a useful teaching reform method exploring for university physical experiments.
【CateGory Index】: O4-33
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