Posted by Brett on September 23, 2002 at 13:40:08:
In Reply to: Re: smoker population posted by Soroban on September 23, 2002 at 13:25:05:
: : Suppose that the population of a certain city is 40% male and 60% female. Suppose also that 50% of the males and 30% of the females smoke. Find the probablility that a smoker is a male.
: Hello, Brett!
: Boy, this is really hard...
: Suppose there 100 people (try it when percents are involved).
: Then there are 40 males and 60 females.
: 50% of the males smoke -- um, that's HALF of them... uh... 20 ?
: And "20 out of 100" is...? (Where's my calculator?)
: Sorry for the sarcasm, but this is NOT a "Help me! Is there a formula?"
: situation. It just takes some Thinking.
Thank you Soroban. Makes sense.
Post a Followup