liuhonghust Suppose X1,X2~(iid)Exponential(theta) with f(x)=1/theta*exp(-x/theta) (theta>0 and x>0) Find the UMVUE of t(theta)=(1-exp(-c/theta))^2, where c is a constant Hint: I(X(2)<c)is unbiased for t(theta) 请各位牛人不吝赐教了,和同学讨论了很久都一直没有得出题目的答案。谢谢大家。