[機統] 指數分布
-λx
X1 && X2 ~(iid) f(x)= λe u(x)
let Y=X1+X2
what is the distribution of f(X|Y) and E(X|Y)
If Xi~(iid) f(X) ,i=1,2,....m
Z=X1+...+Xm
what is the distribution of f(X|Z) and E(X|Z)
thanks!
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