You're playing the ring toss at a carnival. In one round of the game, you either hit your target and win, or you miss the target and lose. What is the probability you will win one round of the game?

If you’re only playing one round, it’ll be 1/2 change you will win. So it is likely

1/2

Total probability in round 1 is 1
And there are two likely outcomes which are win and lose
And as such there is an equal probability for both to happen
Also , the sum of the two outcomes should be 1
(Win + Lose ) = 1
(1/2) + (1/2) =1
Hence the probability that round 1 is won is 1/2