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Oxana [17]
3 years ago
8

What is the probability of rolling the sum of 5 or 8 on a pair of number cubes?

Mathematics
2 answers:
Tasya [4]3 years ago
7 0

|\Omega|=6^2=36\\|A|=\underbrace{4}_{\text{the sum is 5}}+\underbrace{5}_{\text{the sum is 8}}=9\\\\P(A)=\dfrac{9}{36}=\dfrac{1}{4}=25\%

butalik [34]3 years ago
5 0
The probability of rolling a 5 is 4/36 (reduced to 1/9) and the probability of rolling an eight is 5/36. Rolling either would be 9/36 (reduced to 1/4)
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