Introduction to Probability and StatisticIntroduction to Probability and Statistic E[X]=Ex∽P[f(x)]=∫f(x)p(x)dxE[X] = E_{x\backsim P}[f(x)]=\int{f(x)p(x)}dxE[X]=Ex∽P[f(x)]=∫f(x)p(x)dx