If I have tossed the coin 3 times. And got heads. Fourth time, the probability that head comes is 1/16. (For 4 heads in a row). But If another person considers this to be the first toss. Probability for him is 1/2.
2026-03-29 22:34:44.1774823684
Is probability relative?
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No. The probability for obtaining four heads among four tosses is $1/16$. That is a different event.
You want the conditional probability for obtaining a head on the forth toss when given three heads obtained among the first three tosses, which is $1/2$.
Since the individual toss results are independent, this is also simply the probability for obtaining a head on the forth toss.