A woman in this age group had a positive mammography in a

Reference no: EM13641797

One percent of women at age forty who participate in routine screening have breast cancer (prevalence). Eighty percent of women with breast cancer will get positive mammographies (sensitivity). Finally, 9.6% of women without breast cancer will also get positive mammographies (false positives).

(a) In a population of 100,000 women aged forty, how many would be expected to get positive mammographies?

(b) A woman in this age group had a positive mammography in a routine screening. What is the probability that she actually has breast cancer?

Reference no: EM13641797

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