Homework Answers
When a pair dice is cast then sample space is
= { (1,1), (1,2)
, (1,3) , (1,4) ...(1,6)
(2,1) , (2,2), ...(2,6) ...(6,6)}
Let A = Event that the sum of the number showing up is exactly 7.
Therefore,
A = { (1,6) , (2,5) , (3,4), (4,3), (5,2) , (6,1)}
n(A) = 6
By classical definition of probability
Hence, Probability = 0.1667
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