Find the odds of an event occurring, given the probability 1/11

Answer 1

Probability of 1/11 means that there is (1 successful event) for (11 possible events).

Let the event be called E.

P(E) = 1/11

so,

P(E) + P(not E) = 1 [that is, always]

P(not e) = 10/11

Now, odds express for:against [that is, P(E):P(not E) ]

In this case, the odds are: 1:10

Answer 2

If P(E)=1/11, then the odds of it happening are 1:10

For on average Event E happens one time for every 10 times it doesn't happen.