alleryOdds of 7 to 3 against an event mean its probability of success is
A70%
B37%
C30%
D10%
Answer & Solution
Correct answer: C. 30%
1. Odds 7:3 against mean 7 chances of not happening for every 3 of happening.
2. That is 3 successes in 10 trials, which is 30%.
3. 70% is the chance of failure.
_Source: Wikipedia, Ratio, Odds_
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