For those who like Math problems

[KyleBechtold 5,000+ posts]

Read this problem and I thought it was really interesting (not because of the info but more about how to figure it out).
Estimate the probability that a woman with a positive mammogram actually has breast cancer, even though she’s in a low-risk group: 40 to 50 years old, with no symptoms or family history of breast cancer.

Assume the following:

The probability that one of these women has breast cancer is 0.8 percent. If a woman has breast cancer, the probability is 90 percent that she will have a positive mammogram. If a woman does not have breast cancer, the probability is 7 percent that she will still have a positive mammogram. Imagine a woman who has a positive mammogram. What is the probability that she actually has breast cancer?

you answered the question right off the bat

 

[RAM_Designs 5,000+ posts]

you answered the question right off the bat

You should read the thread. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[FurbiesAndBeans 10+ year member]

you answered the question right off the bat

Reading > you

Read this problem and I thought it was really interesting (not because of the info but more about how to figure it out).
Estimate the probability that a woman with a positive mammogram actually has breast cancer, even though she’s in a low-risk group: 40 to 50 years old, with no symptoms or family history of breast cancer.

Assume the following:

The probability that one of these women has breast cancer is 0.8 percent. If a woman has breast cancer, the probability is 90 percent that she will have a positive mammogram. If a woman does not have breast cancer, the probability is 7 percent that she will still have a positive mammogram. Imagine a woman who has a positive mammogram. What is the probability that she actually has breast cancer?

 

[whitedragon551 5,000+ posts]

Apparently less than 1% is the same as 9%

 

[RAM_Designs 5,000+ posts]

The first assumption is referring to the 40-50 year old group of women, not just to the women who test positive.

 

[snoopdan 5,000+ posts]

:boobies::boobies::boobies:

 

[emilimo701 10+ year member]

about 98.5%

breast cancer FTL

 

[dumple 5,000+ posts]

in for tit pics!