Answer:
Probability of rolling an even number then rolling an odd number = 1/4
Explanation:
When we roll a fair six-sided die twice,
The pair of combinations are
(1,1),(1,2),(1,3),(1,4),(1,5),(1,6)
(2,1),(2,2),(2,3),(2,4),(2,5),(2,6)
(3,1),(3,2),(3,3),(3,4),(3,5),(3,6)
(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)
(5,1),(5,2),(5,3),(5,4),(5,5),(5,6)
(5,1),(6,2),(6,3),(6,4),(6,5),(6,6)
There are 36 possibilities
The odd numbers are 1,3 and 5
even numbers are 2,4 and 6
Possibilities of rolling an even number then rolling an odd number
(2,1),(2,3),(25)
(4,1),(4,3),(4,5)
(6,1),(6,3),(6,5)
There are 9 possibilities
Probability of rolling an even number then rolling an odd number = 9/36 = 1/4