Discussion :: Probability
- Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is at most 5?
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Answer : Option D
Explanation :
In a simultaneous throw of two dice, we have n(s) = 6 x 6 = 36
Let E = event of getting two numbers whose sum is at most 5.
Then E = { (1,1), (1,2), (1,3), (1,4), (2,1), (2,2), (2,3), (3,1), (3,2), (4,1)}
therefore, n(E) = 10
And P(E) = p( getting two numbers whose sum is at most 5)
P(E) = n(E)/n(s) = 10/36 = 5/18
Hence the answer is 5/18
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