The 'Sleeping Beauty problem' is a famous probability par... | funfact.wiki | funfact.wiki
The 'Sleeping Beauty problem' is a famous probabilityparadox. If a coin lands heads, she is woken once; if tails, twice with memory erased. The 'Halfer' camp says heads is 1/2, the 'Thirder' camp says 1/3, and both answers are logically valid.
In the 1982 SAT, only 3 of 300,000 students answered a circle rotation problem correctly. Even the test makers were wrong, and the correct answer was not among the choices. The key is the coin rotation paradox: a circle rolling around an equal circle makes 2 full turns, not 1.