This paper use experimental data to set up linear regression equation with unitary and regression straight line, to use variance analysis and related coefficient to test validity of equation.
本文利用实验数据建立一元线性回归方程；回归直线，并用方差分析法和相关系数法检验方程的有效性。
This law can be used to establish every field of the regression equation of straight line.
本法可用于建立回归直线方程的各个领域。
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