SOLUTION: A pair of dice is tossed and the sum of the two dice is calculated. Find the probability the sum is 3.

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Question 1132046: A pair of dice is tossed and the sum of the two dice is calculated. Find the probability the sum is 3.

Found 2 solutions by gsmani_iyer, ikleyn:
Answer by gsmani_iyer(201)   (Show Source): You can put this solution on YOUR website!
which is equal to
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
The total space of events is the space of all pairs (a,b), where "a" and "b" are integer numbers from 1 to 6 inclusively.


So, the total space of events has 6*6 = 36 elements, that are such pairs (outcomes).


The favorable set is the set of pairs (a,b) with a + b = 3.


It consists of pairs (1,2) and (2,1), counting exactly 2 (two) elements.


Therefore, the probability under the question is the ratio   = .      ANSWER


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