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Question

A die is thrown twice. What is the probability that
5 will not come up either time?

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Solution

Outcomes =(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),
(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6)
,(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)

P(5 will come up either times)=2536
Explanation :- 5 will not come up either times means In the throw no diece gets a number 5 on them so possible outcomes
=(1,1),(1,2),(1,3),(1,4),(1,6),(2,1),(2,2),(2,3),(2,4),(2,6),(3,1),(3,2)
,(3,3),(3,4),(3,6),(4,1),(4,2),(4,3),(4,4),(4,6),(5,1),(5,2),(5,3),(5,4),(5,6),
(6,1),(6,2),(6,3),(6,4),(6,6)

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