设总体X的概率分布为X 0 1 2-|||-P (theta )^2 https:/img.zuoyebang.cc/zyb_9a4dc435e7d9078a62e7493649350999.jpg-2theta theta -(theta )^2,其中X 0 1 2-|||-P (theta )^2 https:/img.zuoyebang.cc/zyb_043f601748d41d5e56c5546f11700005.jpg-2theta theta -(theta )^2为未知参数,给定总体X的样本值为2,1,0,0,1,1,2,2,则似然函数为______.

设总体X的概率分布为,其中为未知参数,给定总体X的样本值为2,1,0,0,1,1,2,2,则似然函数为______.

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