# Given the probability p=13/20 that an event will not happen, how do you find the probability that the event will happen?

##### 1 Answer

Apr 24, 2017

#### Answer:

#### Explanation:

For any given event, there are only two outcomes:

Either the event DID happen or it DID NOT happen.

(It cannot almost happen, or half happen)

The sum of the probabilities in a given situation is always