The function that I am integrating is x times delta where density will be given to me maybe as a function of x and y.
被积函数是x*δ,密度可能会由x和y的一个函数给出。
2
For functions of them, the delta method implies the following result, proved in Section 14.1.4: Let denote a differentiable function of, with sample value for a multinomial sample.