Question

Find the probability of a 4 turning up at least once in two tosses of a fair die

Answer 1

Kids way

Sample space:  

6×6=36

6×6=36

Event:  

{(1,4),(2,4),(3,4),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,4),(6,4)}

{(1,4),(2,4),(3,4),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,4),(6,4)}

11

Answer:

11/ 36