Question 31
Determine the probability of getting a 'nine' or 'ten' on a single throw of two dice simultaneously ?
Solution
If two die are thrown simultaneously, a total of $$\left(6\times6\right)=36$$ outcomes are possible.
We have to find the probability of getting a total of 9 or 10.
Outcomes which gives a total of 9 from the two die = (3,6) ; (4,5) ; (5,4) ; (6,3)
Outcomes which gives a total of 10 from the two die = (4,6) ; (5,5) ; (6,4)
Total favourable outcomes = 4 + 3 = 7
Probability = $$\dfrac{7}{36}$$
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