Mind & EverydayFact
Two conditions can never be likelier than one.
Linda is 31, outspoken, studied philosophy and joined anti-nuclear protests. Is she more likely a bank teller, or a feminist bank teller? About 85 percent pick the second – mathematically impossible, since every feminist bank teller is also a bank teller.
Useful: The more detailed a story sounds, the less likely it is – not the more.
Source: en.wikipedia.org