Like the title "Making a decision", I am standing for a problem.
I've calculated two probabilities.

$$P(\text{Match}) = 0.24$$

$$P(¬\text{Match}) = 0.76$$

Now I've to make a decision. 

Does anybody know how I can do this with mathematics? I've heard about utility functions or likelihood functions. But I don't know how to start.

Edit
It's part of an artificial intelligence system. 
For example: I have a couple of sensors. They measure the enviroment about an object like a toy car with a trailer.

Match stands that the trailer is loaded. 

¬Match stands that the trailer is not loaded. 

The decision iam thinking of would tell me, 0.76 is enough to say that the trailer is loaded and the toy car can pass. Otherwise no pass. So I'm locking for an equation or a construct with a defined threshold to make this decision. Sorry if I can't describe it better, but english is not my native language

Greetings
Jason