Question

A person is selected at random from a population that has the following characteristics:

65% of the people are men; the others are women

12% of the men are smokers

7% of the women are smokers
1. Find the chance that the selected person is a non-smoker, given that the person is a man.
(Decimal answer, please, correct to four decimal places.)
2. Find the chance that the selected person is a woman who smokes.
3. Find the chance that the selected person is a smoker.
4. Given that the selected person is a smoker, what is the chance that the person is a woman?
5. Find the chance that the selected person is a man or a non-smoker.

Answer 1

2. (0,35*0.07)=0.0245
3. (0,12*0,65)+(0,35*0,07)=0.1025

Answer 2

1. .65 * (1-.12) = ?

2, 3. Right!

4. .07 * .35 = ?

Either-or probabilities are found by adding the individual probabilities.

5. .65 + (.88*.65)(.93 *.35) = ?

Answer 3

Dear PsyDAG, sorry, but 1 and 4 and 5 are incorrect, did you tried the answers and fond that they are correct?

Answer 4

4. P=(0.07*0.35)/(0.12*.65)+(0.07*0.35)=0.2390 this is the correct

Answer 5

A person is selected at random from a population that has the following characteristics:

65% of the people are men; the others are women

12% of the men are smokers

7% of the women are smokers
1. Find the chance that the selected person is a non-smoker, given that the person is a man.

Answer 6

You know Amman, you could always try to answer these yourself. Does the certificate mean so much to you? I think it's funny. Cheating to get a worthless bit of paper. More fool you and those who help you.