关于正态分布和标准差的If x is normally distributed with mean u and standard deviation four,and given that the probability that x is less 32 is 0.0228,find the value of u.如果x服从正态分布均值是u,标准差是4,并且x小于32的
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关于正态分布和标准差的If x is normally distributed with mean u and standard deviation four,and given that the probability that x is less 32 is 0.0228,find the value of u.如果x服从正态分布均值是u,标准差是4,并且x小于32的
关于正态分布和标准差的
If x is normally distributed with mean u and standard deviation four,and given that the probability that x is less 32 is 0.0228,find the value of u.
如果x服从正态分布均值是u,标准差是4,并且x小于32的可能性事0.0228,求u的值.
关于正态分布和标准差的If x is normally distributed with mean u and standard deviation four,and given that the probability that x is less 32 is 0.0228,find the value of u.如果x服从正态分布均值是u,标准差是4,并且x小于32的
假设标准正态分布的累积分布函数为phi(x),则phi((32-u)/4)=0.0228,则计算得u=32-4*phi^{-1}(0.0228),于是u=39.9963.
matlab程序如下:
u=32-4*norminv(0.0228,0,1)
%%%函数norminv为标准正态分布累积分布函数的逆函数,matlab称为正态分布临界值函数.