Question

You roll a red die and a green die. What is the size of the sample space of all possible outcomes of rolling these two dice, given that the red die shows an even number?

Answer 1

put the red die first and write them out
(2,1)
(2,2)
(2,3)
(2,4)
(2,5)
(2,6)

Answer 2

now we see it is silly. there are 6 possibilities for each even number therefore 3*6=18 total.

Answer 3

That makes complete sense , it reminds me of stat