Given the following statistics for women over the age of 50 entering our medical clinic:
(a) 1% actually have breast cancer
(b) 90% of the women who have breast cancer are going to get a positive test result (affirming that they have the disease)
(c) 8% of those that actually don’t have the disease are going to be told that they do have breast cancer (a "false positive")

what’s the actual probability, if a woman gets a positive test result, that she actually does have breast cancer?