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When two events occur, there are several possible outcomes.
For example, when these two spinners are spun, there are 4 x 4 = 16 possible outcomes.
The two scores are added together and so we can create a sample space diagram to show the possible totals.
| 1 | 2 | 3 | 4 | |
| 1 | 2 | 3 | 4 | 5 |
| 2 | 3 | 4 | 5 | 6 |
| 3 | 4 | 5 | 6 | 7 |
| 4 | 5 | 6 | 7 | 8 |
The possible totals are 2, 3, 4, 5, 6, 7 and 8.
The probability of getting a total of 7, P(7) = 2/16 = 1/8
Remember to simplify your answer!
