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?

Solutions

Expert Solution

a) The disease rate in population is 21.6%.

b) If a randomly selected person have disease, the chance the person is white is 0.25.

Note Since the disease rate was in decimal, for further calculation it is rounded up, because person count can not be in decimal.

orchestra answered 1 year ago

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