# Why is it that the probability associated with an event can not be a number greater than 1 nor less than 0?

##### 1 Answer

Jan 19, 2017

Please see below.

#### Explanation:

The probability associated with an event is the **ratio**

of the number of possible events (say **A**) favorable for the occurrence of the event,

to the number of all the events (say **B**) that are possible.

As the **minimum** value for **A** could be

and **maximum** value possible for **A** is **B**

the ratio i.e. the probability of happening of the event ranges from

the probability associated with an event can not be a number greater than