Question 484531: Prevalence of Alzheimer's disease (cases per 100 population)
Age group; males; females
65-69; 1.6; 0.0
70-74; 0.0; 2.2
75-79; 4.9; 2.3
80-84; 8.6; 7.8
85+; 35.0; 27.9
Suppose an unrelated 77 year old man, 76 year old woman, and 82 year old woman are selected from a community. Suppose we know two of the three people has Alzheimer's disease, but we don't know which one. What is the conditional probability that the affected person is a woman? Answer by solver91311(24713) (Show Source):