Odds

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Odds is simply a different version of probability. To calculate the odds, first find the probability of it, say $\frac{n}{r}$ subtract the numerator from the denominator, thus giving $\frac{n}{r-n}$.

Some Simple Problems Involving Odds

What is the odds of getting rolling a six on a standard die?

Solution: The probability of rolling a six on a die is $\frac{1}{6}$. This makes the odds $\frac{1}{6-1}=\frac{1}{5}$