The different outcomes that determine the probability of rolling odd can be visualized using a Venn diagram, the beginning of which is seen below. Each circle represents the possible ways that each die can land on an odd number. Circle A is for the first die landing on an odd number and circle B is for the second die landing on an odd. The circles overlap because some rolls of the two dice are successes for both dice. In each circle, the overlap, and the area outside the circles, one of the ordered pairs from the lattice has been placed. (1, 4) appears in circle A because the first die is odd, (6, 3), appears in circle B because the second die is odd, (5,1) appears in both circles at the same time (the overlap) because each die is odd, and (2, 6) appears outside of the circles because neither dice is odd.