The riddle of True Positive, True Negative, False Positive and False Negative

I’m sure most of you are always confused regarding when an event is True Positive, True Negative, False Positive and False Negative.

I am using cricket the sport to explain this simple concept.

True Positive:

       Umpire gives a Batsman NOT OUT when he is NOT OUT.

True Negative :

       Umpire gives a Batsman OUT when he is OUT.

False Positive:

          Umpire gives a Batsman  OUT when he is NOT OUT.

         

 False Negative:

           Umpire gives a Batsman NOT OUT when he is OUT.

I hope it helps in demystifying the mystery!