设随机变量x㰢n(0,1),求y=e∧x的概率密度

2024-11-16 04:21:41
推荐回答(1个)
回答1:

f(y)=f(x)/|g'(x)|= [1/(y(2)pi(DX))^(1/2)] e^(-[(lny-E(X))^2]/(2D(X)))