Activity for thelast19digitsofpi‭

Type	On...	Excerpt	Status	Date
Comment	Post #282038	(2) We don't know the number of people, but for most of the calculations it doesn't matter. Let's say there are 1000. 50% are married, so 500 are married and 500 are not. Out of the 500 married people, 10% **of 500 married** people smoke, which is 50. 30% **of non-married people** (of which there are... (more)	—	almost 3 years ago
Comment	Post #282038	(1) Ah, I see. The words "to smoke" apply to both "married" and "average person". In probability notation it's Pr(smokes | married) < Pr(smokes), where Pr(X | Y) means "probability of X given Y is true". (Some sources just use "P" instead of "Pr".) (more)	—	almost 3 years ago