The random variables X and Y are jointly distributed according to the pdf $f_{X,Y} (x,y)=x+y, 0
Since this is a conditional probability, can't I just write $P(Y>1/3|X=1/2)=P(Y>1/3 , X=1/2)*P(X=1/2)=0$ since $P(X=1/2)=0$ -because the random variables are continuous??