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You are on a TV show and are offered to open one of three doors. Behind one of the doors is a car, and behind the other two, there is nothing. You choose one of the doors, and the host opens one of the remaining two doors, revealing that there is no car behind it. You are then offered to change your decision (take the other door from the two remaining). The question is - does it make sense to do so?
And extra percentages do indeed exist, but I will omit the tirade about the variable from the movie's character (or its screenwriters):)
P.S. Sorry - I couldn't resist, but it really is one and the same.
Секрет в рассказе,а не в рассказчике