I still don't trust them. Only 15% of doctors get this question right: >1% of women at age forty who participate in routine screening have breast cancer. 80%

I still don't trust them. Only 15% of doctors get this question right: >1% of women at age forty who participate in routine screening have breast cancer. 80% of women with breast cancer will get positive mammographies. 9.6% of women without breast cancer will also get positive mammographies. A woman in this age group had a positive mammography in a routine screening. What is the probability that she actually has breast cancer?