# 我有一個大學的機率數學題 ><!急

if the joint probability density of x and y is given by

f(x,y)= 24y(1-x-y) for x>0, y>0 , x+y<1 , 0 elsewhere

find

(a)the marginal density of x

(b) the marginal density of y

also determine whether the two random variables are independent

please steps by steps !

f(x,y)= 24y(1-x-y) for x>0, y>0 , x+y<1 , 0 elsewhere

find

(a)the marginal density of x

(b) the marginal density of y

also determine whether the two random variables are independent

please steps by steps !

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