standard normal distribution

This paper firstly describes the equivalent transformation of standard normal distribution function , then calculates the function value by using the method of changing step length , and lastly gives out the flow chart and program written in Visual Basic .

对标准正态分布函数公式进行恒等变形，再用变步长法计算正态分布函数值，并用VB6.0完成该函数计算功能模块的程序设计。

The Fitting Method for Standard Normal Distribution

标准正态分布函数的拟合方法

Calculation and Program Design of Standard Normal Distribution Function Using Method of Changing Step Length

变步长法计算标准正态分布函数与函数模块设计

Producing the Random Numbers of Standard Normal Distribution on PC-1500 Computer and Their Test

用PC&1500机产生标准正态分布随机数及其检验

In this paper , we use reversed standard normal distribution curve to solve the problems of chest distortion .

本文采用倒过来的标准正态分布曲线作为缩放比例，解决身高缩放模型中胸部失真的问题。

The watermark , consisting of random numbers according to the standard normal distribution , is embedded into images singular values .

由服从标准正态分布的随机数组成的水印被嵌入到图像分解后的奇异值中。

For statistical test of a difference between two constituent ratios , if the number of samples is large enough , one can use the standard normal distribution variable μ test .

在进行差异显著性检验时，如果样本数n较大，则组成百分率可用标准正态变量μ检验。

Analysising the standard normal distribution ( SND ) based deseasonalization method , proposing the combined SND and GM ( 1,1 ) model ;

分析了基于标准正态分布（SND）的去季节性波动方法，提出了结合SND和GM（1，1）模型建立的SND-GM（1，1）混合模型的方法；

The table of standard normal distribution was handled correctly by use of Raphson numerical integral , by this way , the optimum design was connected with reliability design organically .

文中提出采用辛卜生数值积分较好地处理了正态分布数值表，从而将优化设计与可靠性设计有机地结合起来。

The first algorithm is that watermark is embedded in lower frequency part after an original image has been transformed based on DCT and the watermark is a random sequence according to standard normal distribution .

一是对原始图像作整体DCT变换后在低频分量上嵌入水印，水印是一符合标准正态分布的随机序列；

Based on multiplication theorem of probability , an effective approximation is presented to the bi-normal distribution with substituting the original conditional distribution by the standard normal distribution of the same expectation and variance .

本文根据概率乘法定理，利用以条件数学期望和方差为参数的一维正态分布近似代替原来的条件分布，从而得出计算二维标准正态分布函数值的近似公式。

However , the OSCE scores are generally following the standard normal distribution approximately . The variance analysis results show that the scores ' difference among students under different educational systems and grades has statistical significance . 4 .

OSCE成绩在总体上基本服从正态分布，方差分析结果表明不同学制和年级学生考试成绩间的差别有统计学意义。

Asymptotic Property of Extremal Distribution and Moment of Standard Logarithmic Normal Distribution

标准对数正态分布的极大值分布和矩的渐近性质

In this paper , the asymptotic properties of the distribution and moment of maximum of in - dependent random variables sequence with standard logarithmic normal distribution as base distribution are discussed .

本文考察了底分布为标准对数正态分布时，独立同分布随机变量序列的极大值的分布和矩的渐近性质。

Mathematics experiment about standard deviation of normal distribution

正态分布标准差的数学实验

The principle for transforming original marks into standard ones using normal distribution is discussed .

论述了利用正态分布将原始分数转换为标准分数进行处理的分数转换原理；

Improvement of interval estimator for the standard deviation of a normal distribution

正态分布标准差区间估计的改进

The models were estimated via Gibbs sampler with data augmentation by a mixture of standard exponential distribution and standard normal distribution to represent the asymmetric Laplace distribution .

由于模型参数的后验条件分布没有确定的分布形式，通过数据扩充得到参数的完全条件分布从而实现模型参数的贝叶斯估计。

We select 16 strong earthquake records , and calculate their means and standard deviation values of logarithmic normal distribution , and convert them into means and standard deviation values of normal distribution with logarithmic normal distribution character of phase difference spectrum .

针对相位差谱具有对数正态分布的特点，选取西部67个强震记录计算了各自相位差谱对数正态分布的均值和标准差，再将其转为正态分布的均值和标准差。

By using double integral method , the standard of probability density of standard normal distribution was proved , and an example was given to display a widespread application of the nature .

利用高等数学中二重积分方法，证明了性质“标准正态分布概率密度规范性”，并通过例子说明此性质在概率统计学科中的广泛应用。