Reference no: EM132250223
Assume breast cancer affects 0.001 of the female population between 45 and 55 years of age.
There are two kinds of positive test results:
* True positive (the test indicates you have a disease, and you actually have it)
* False positive ( the test indicates you have a disease, but you actually do not).
Assume mammograms are
* 0.93 accurate detecting people who actually have breast cancer (true positive rate)
* 0.92 accurate for people who do not have breast cancer (true negative rate).
Compute the probability that a female between the ages of 45 and 55 who tests positive for breast cancer has breast cancer, and enter your answer with 3 decimal places.
P(Disease | Test postive) =
P(Disease and Test Positive) / P(Test Positive)
Also consider the part of the population that does not have the disease and infer the false positive rate from the true negative rate.