Convert 21 to 81 Odds to Probability

21 to 81 Odds means that there are 21 chances of one outcome and 81 chances of a different outcome.

We will call these different outcomes A and B. Thus, there are 21 A's and 81 B's in 21 to 81 Odds.

21 to 81 Odds can be written as a ratio of 21/81. Instead of a ratio, Probability shows the percent chance of the outcomes A and B.

The two formulas to convert Odds to Probabilities are as follows

(A/(A+B))*100 = A%
(B/(A+B))*100 = B%

When we plug the 21 to 81 Odds numbers into the formulas, we get:

(21/(21+81))*100 = 20.59%
(81/(21+81))*100 = 79.41%

Therefore, 21 to 81 Odds converts to the following Probabilities:

20.59% Probability of A

79.41% Probability of B

So instead of saying 21 to 81 Odds, you could say that there is a 20.59% Probability.

Odds To Probability Converter
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Convert 21 to 82 Odds to Probability
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