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A diagnostic test has a 95% probability of giving a positive result when given to a...

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Basic Math

A diagnostic test has a 95% probability of giving a positiveresult when given to a person who has a certain disease. It has a10% probability of giving a (false) positive result when given to aperson who doesn’t have the disease. It is estimated that 15% ofthe population suffers from this disease.

(a) What is the probability that a test result is positive?

(b) A person recieves a positive test result. What is theprobability that this person actually has the disease? (probabilityof a true positive)

(c) A person recieves a positive test result. What is theprobability that this person doesn’t actually have the disease?(probability of a false negative)

Answer & Explanation Solved by verified expert
3.8 Ratings (729 Votes)
Phaving the disease 015 Ppositive test have the disease 095 Ppositive test dont have the disease 01 a    See Answer
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