There are three cards in box X and three cards in box Y. There is a number on each card.
Box X Contains cards with numbers 1, 3, and 5.
Box Y Contains cards with numbers 2, 4, and 6.
Sam takes a card from box X and a card from box Y.
Write down all the possible combinations of cards Sam can take.
Sam adds the numbers on the two cards to get a total score. Work out the probability that the total score is greater than 8.