Is there anyone who gambles without doing their proper analysis?
Of course we all need time to properly predict and review our games to place us in a higher chance of winning, we can't just rely on the fact that we knows the teams proper hence we could just place our bet and expect to have winning. It doesn't work like that we must thoroughly go through our games before finally place bet.
Normally we are are supposed to take good time to analyze and check statistics then also check to see the probability of a possible outcome for a game before we place our beta on such games because without such our chances of winning may reduce and this has been the mindset most often amongst gamblers.
There are people who actually don't waste so much time analysing and doing all that you have said just for them to be able to get good predictions, rather they just make Radom picks and sometimes they are lucky and they will win same applies to when they just wait to play games from other people, they don't do their own personal analysis rather they just get people's predictions and stake on it and they can be lucky to win at times so somehow this whole thing isn't patterned to a particular style many others try out Many things and it works for them still.
Random pick our guess does not make us win neither does carefully selected games gives us winning, to me analysing games and matches draws us more closer to winning and the chances are very high than randomly picking. Although someone can be actually correct by picking randomly but the chance are very slime in my opinion, so the best is to give time and carefully make their analysis even as we often say that gambling is a game of probability but there are more chance of winning a well predicted matches than randomly picked.