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10. (8) In a faraway land, there are 80% white people. There are 25% of white...

10. (8) In a faraway land, there are 80% white people. There are 25% of white race will have a particular disease, while there are only 8% of non-white will have such a disease.

(a) What is the disease rate in that population?

(b) If a randomly selected person have the disease, what is the chance the person is white?

Math   Statistics-And-Probability   
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