Question

The odds against an event E occurring are 12 to 3. What is the probability of E occurring

Answer 1

The answer is "12:3." The odds of it happening is 12 to 3.The is the measure of the likelihood that an event will occur. 

Hope this helps!

Answer 2

To solve this problem you must apply the proccedire shown above:

 1. You have that the odds against an event E occurring are 12 to 3. Therefore, you have:

 total outcomes=12+3=15

  2. Then, you have that the probability of the event E occurring is:

 1-12/15=1/5

 The answer is: 1/5