you roll two dice, a red and green die. Find: P(1 on green die and 1 on red die). please explain?

Answer 1

If the dice are normal dice with 6 sides, then there are 6 X 6 or 36 possible ways they can land. Only one of these ways has 1 on both dice, so that the probability (P) is 1/36 (.028) of getting "snake eyes."

Cheers,
Bruce