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Probability
What is the probability of getting a sum 9 from two throws of a dice?
1 6
1 8
1 9
1 12
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Correct Answer:
1 9
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
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