lt4_1_8_1.m

来自「数理统计与MATLAB的原程序」· M 代码 · 共 6 行

%例4.1.8,估计参数
x=[0.35,0.65,0.95,1.25,1.55,1.85,2.15,2.45,2.75,3.05];
n=[1,6,5,12,19,24,25,19,20,2];
mu=sum(n.*x)/sum(n)
s=sqrt(sum(n.*(x-mu).^2)./(sum(n)-1))