Question 266835: Two dice are rolled. Find the odds against a sum of 5.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Two dice are rolled. Find the odds against a sum of 5.
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Ways to get sum of 5: 1/4,2/3,3/2,4/1-----4 ways
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P(sum of 5) = 4/36 = 1/9
P(not sum of 5) = 8/9
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Odds against E = P(not E)/P(E)
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Probability against sum of 5 = (8/9)/(1/9) = 8:1
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Cheers,
Stan H.
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