
Concept explainers
To find: the probability of rolling a sum greater than 8

Answer to Problem 13.6.11EP
The required probability is
Explanation of Solution
Given:
two cubes are rolled.
Calculation:
Probability:
Possible number of outcomes in rolling two cubes is
(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)
Total number of outcomes is
Outcomes that have sum greater than 8 are
(3,6),(6,3),(4,5),(5,4),(4,6),(6,4),(5,5),(5,6),(6,5),(6,6)
Total number of favorable outcomes is 10 .
Hence, the required probability is
Conclusion:
Therefore, the required probability is
Chapter SH Solutions
Pre-Algebra Student Edition
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