| A | B |
| probability of flipping a head? | p(H)=1/2 |
| probability of an even number on a dice | 3/6 |
| probability of rolling a 5 n a dice | 1/6 |
| probability of choosing a king | 4/52 |
| probability of a king or a queen | 8/52 |
| probability of a heart | 13/52 |
| the probability that the sun will rise tomorrow | certain |
| the probability that you will live toa 1000 | impossible |