Data from Office on Smoking and Health, Centers for Disease Control and Prevention, indicate that 35% of adults who did not finish high school, 30% of high school graduates, 25% of adults who completed some college, and 14% of college graduates smoke. Suppose that one individual is selected at random and it is discovered that the individual smokes. Use the probabilities in the following table to calculate the probability that the individual is a college graduate.
(Use picture)
Probability =

- Pulsified333

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- Pulsified333

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- Pulsified333

@dan815

- dan815

okay im here

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- Pulsified333

I see that

- Pulsified333

:D thank you

- dan815

what picture do they want

- Pulsified333

the attachment I put there

- dan815

okay i see

- Pulsified333

@dan815 I just saw this underneath all of the text
Hints: This problem has all the information you need, but not in the typical ready-to-use form. The table above can tell you the proportion of people with various levels of education in the population. Keep in mind that any degree (Associate, Bachelor, or Advanced) counts as graduating from college.

- dan815

measure the true area

- dan815

hehe dont need hint :P

- Pulsified333

haha okay. what do you mean measure the true area?

- dan815

35% no high
30% high
25%some college
14%college
----------------------
total percentage of college students that smoke
=0.14 * (total college students %)
=0.14*(0.0849+0.1959+0.0975)

- dan815

now u wanna know the chance that a person smoking is a college student?

- dan815

that would be
college smoker/ all smokers

- dan815

its very similiar to the question u did before this one

- Pulsified333

so now its all of college smokers/ (0.0849+0.1959+0.0975+.1785+.3108+.0975)

- dan815

not all of them smoke those are the distribution of the people

- dan815

we want to see only the smokers from them

- Pulsified333

oh wait

- dan815

35% no high
30% high
25%some college
14%college
----------------------
total percentage of college students that smoke
=0.14 * (total college students %)
=0.14*(0.0849+0.1959+0.0975)
--------------------
Total smokers
=0.35*0.0975 + 0.30* 0.3108 + 0.25*0.1785 + 0.14*(0.0849+0.1959+0.0975)

- Pulsified333

exactly what I was typing

- Pulsified333

haha

- dan815

oh oops i didnt see the unemployed part

- dan815

just add the numbers in unmployed in everywhere

- Pulsified333

kk

- Pulsified333

what about for the numerator?

- Pulsified333

@dan815 where do I add the unemployed?

- dan815

its part of the total population

- Pulsified333

so do I add employed and unemployed together than multiple by the %

- dan815

yes

- Pulsified333

okay one sec

- Pulsified333

it was correct :D

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