If you flip a coin that you know is fair, then you would correctly expect even odds for heads and tails. You’d expect so even if you use a coin that has been flipped hundreds of times before. For a fair coin, the relation between past and future flips is entirely in your mind.
The probability of flipping 25 heads in a row is very low, but it’s only half as much as flipping 24 heads in a row, so the odds of flipping the 25th heads after already getting 24 is the same as getting heads once.
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