What is the probability of getting a sum 9 from two throws of a dice?
Question: What is the probability of getting a sum 9 from two throws of a dice?
[A].
[A].
| 1 |
| 6 |
[B].
| 1 |
| 8 |
[C].
| 1 |
| 9 |
[D].
| 1 |
| 12 |
Answer: Option C
Explanation:
In two throws of a dice, n(S) = (6 x 6) = 36.
Let E = event of getting a sum ={(3, 6), (4, 5), (5, 4), (6, 3)}.
| P(E) = | n(E) | = | 4 | = | 1 | . |
| n(S) | 36 | 9 |