Yes, if an event has already taken place, its probability is considered to be 1, as it is certain that the event occurred. In probability theory, an event with a probability of 1 means that it is guaranteed to happen.
If a dice roll has already occurred and we know that it landed on 6, then the probability of that particular roll being a 6 is indeed trivially 1. This is because the event has already happened, so we have certainty about the outcome. However, if you are asking about the probability of rolling a 6 on future rolls of the dice, that would still be 1/6 for a fair six-sided die, since each roll is independent of the previous rolls.
At first glance, it appears that the
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