【摘要】 为简化正态分布的概率计算,通常以一个新的变数u代替x,即通过u=(x-μ)/γ转换为标准正态分布,进而计算某变数x的区间概率。更多还原

【Abstract】 A new variable u generally is used to replace the x in order to simplify the probability calculation processes of the normal distribution, that is the x to be changed to the standard normal distribution through the u= x-μ/σ and then proceed to calculate the interval probability of the certain variable x. The thesis analyzed this connotation of the mathematical theorem directly with the analytic diagram.更多还原