<t>does anyone know a good web-reference for understanding derivation of joint distribution functions. i'm self-studying freund's math stats and hes got one example which confuses more than explain. specifically, i'm a bit confused about the limits of the integrals. for ex: f(x,y)=x+y for 0<x<1, 0<y...

thanks for the suggestion phirangm......think I will.DT, thanks for the answer. I standardized X-Y z=-1- (-1) / sqrt(5) = 0 P(z<0)= 0.5 correct ?

<t>1)X and Y are independent normal random variables suchthat E(X)=0, E(X^2)=1, E(Y)=1, E(Y^2)=5 (a) What is the distribution of (X-Y) ?(b) Find P{Y > X+1). 2) A basketball team plays a series of games and stops playing when it has won two games. It has 60% chance to win each game. The outcomes of d...