The probability that an event will occur is 0.1. what is the probability that the event will not occur

0.9

Step-by-step explanation:

For any event A , the probability of event A will occur be P(A).

Then , the probability of not occuring the event A will be given by :-

The given statement : The probability that an event will occur is 0.1.

That is ,

Now, the probability that the event will NOT occur is given by :-

Hence, the probability that the event will NOT occur = 0.9

umm you say your want to . but you do know that this is the mathematics.  

o~o