Question 1115273: If the odds against an event are 2:5, then the probability of the event = ______(write answer as a fraction). Found 2 solutions by stanbon, josmiceli:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If the odds against an event are 2:5, then the probability of the event = ______(write answer as a fraction).
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odds against = P(against)/P(for)
If odds against are 2:5 = (2/7)/(5/7)
Then P(for) = 5/7
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Cheers,
Stan H.
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You can put this solution on YOUR website! For odds:
[ chance of a favorable outcome ]:
[ chance of an unfavorable outcome ]:
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For probability:
[ chance of a favorable outcome ] / { total of all possible outcomes ]
(