Discussion on Facebook about MENSA. Dude wrote “Mensa accepts the top 2% (1 out of 50) of all people. Therefore any couple has a 4% (1 out of 25) chance of at least one of them being in Mensa. Since every member of Mensa has two parents then they have a 1 out of 25 chance of having one or more parents in Mensa.” Is that logical?