Studied by 0 peopleOn the probability of being sick, when tested positive
From the German book: Bornholdt, Dubben – ”Der Hund der Eier legte”. After your return from an exotic place you are afraid to be infected with a nasty disease that infects every 1,000th tourist. Healing prospect is good if detected and treated early. You are tested positive.
Accuracy of the screening test:
When tested positive, the chances to really have the disease are 4.7 percent (47 out of 1,000 persons with positive testresult are truly diseased)
On the probability of being sick, when tested positive
There is an easy-to-administer, harmless and low priced test that simply classifies everybody as diseased. What is the probability of truly having the disease when classified positive under this test?
The disease prevalence
On the probability of being sick, when tested positive
From the German book: Bornholdt, Dubben – ”Der Hund der Eier legte”. After your return from an exotic place you are afraid to be infected with a nasty disease that infects every 1,000th tourist. Healing prospect is good if detected and treated early. You are tested positive.
Accuracy of the screening test: 99 out of 100 diseased are detected 98 out of 100 non diseased are detected What is the probability that you have the disease?
When tested positive, the chances to really have the disease are 4.7 percent (47 out of 1,000 persons with positive testresult are truly dis- eased)
On the probability of being sick, when tested positive
There is an easy-to-administer, harmless and low priced test that simply classifies everybody as diseased. What is the probability of truly having the disease when classified positive under this test?
The disease prevalence
Note 
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