If you flip the coin and it lands heads five times in a row, you win 10,000 dollars.
You flip the coin four times, and are very lucy - you get four heads in a row.
You flip the fifth and final time. What are the odds it comes up heads?
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Well without the explicit mention that the coin is perfectly balanced there's a non-0 probability that it's rigged towards heads, so over
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Assuming the coin is balanced it's still 50%, but you could argue that getting a bunch of heads in a row gives you a small reason to think the process might be genuinely biased somehow
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While you would think the odds are actually still 50% flipping 4 heads in a row gives credence to the theory that the coin is weighted, (1/16 is still mostly chance though) also if you flip with the heads side up it's >50% to lead heads regardless
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