A hint to get started
Reverse the conditioning in a dice table
A fair die is thrown twice. Find the probability that (i) the total score is 6, (ii) the first throw is even, (iii) the total score is 6 given that the first throw is even, (iv) the first throw is even given that the total score is 6.
CJC · Lecture · Example 4
Name the events, identify the sample space, and state which outcomes or conditions are being counted.