Difference between p(y=0|x=0) and p(x=0,y=0)

#1
Another Trivial question:

I have been asked to calculate the joint probability i.e. p(X=0,Y=0) and i have been provided by P(Y=0|X=0), is it the same?
 

Dason

Ambassador to the humans
#2
No. Look up the definition of conditional probability and that should answer your question for how they are related.