∵似然函数为-|||-n-|||-L(x1,x2,-,n;0)=T0e-|||-0xi=-|||-i=1-|||-ge-02,0x1-|||-=1-|||-0-|||-,其它-|||-∴.lnL=nln-0-|||-二x;为了使似然函数取得-|||-i=1-|||-最大值,则应取到最大值0-|||-(nL)=2-∑xi-|||-【解析】-|||-i=1-|||-令(lnL)'...
5设${X}_{1}$,${X}_{2}$,···,${X}_{n}$是来自总体X的样本,${x}_{1}$,${x}_{2}$,···,${x}_{n}$是样本观测值,求下列总体X的概率密度中未知参数$\theta $的矩估计量和最大似然估计量.(1)$f\left(x;\theta \right)=\left\{\begin{array}{l}\left(\theta +1...