The Incidence of Breast Cancer Varies Depending on a Woman's

Multiple Choice

The incidence of breast cancer varies depending on a woman's age. The National Cancer Institute gives the following probabilities for a randomly chosen woman in her 50s who takes a mammography to screen for breast cancer:
What percent of women in their 50s taking a screening mammography receive a positive test result?

A) 80%
B) 12%
C) 2%
D) 3%