Question

Mammography is used as a form of early detection of breast cancer in women. We know...

Mammography is used as a form of early detection of breast cancer in women. We know that if a woman has breast cancer, mammography will detect it 90% of the time. If the woman does not have breast cancer, then mammography will give a positive result 7% of the time. We also know that there is a 0.8% chance that any given woman has breast cancer.

What is the probability that a woman has breast cancer if she has a positive mammogram?

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