One in a thousand people are afflicted with the dreaded zigma disease. A pharmaceutical company develops a test for this disease and brags that only 5% of those with the disease test negative for it and 1% of those who do not have zigma will test positive for it.

What is the probability that a person who tests positive actually has zigma?

a. 9.99%

b. 1.09%

c. 8.68%

d. 5.01%

e. 9.51%

Question

Avery Garrett

Mathematics

2 October, 20:29

One in a thousand people are afflicted with the dreaded zigma disease. A pharmaceutical company develops a test for this disease and brags that only 5% of those with the disease test negative for it and 1% of those who do not have zigma will test positive for it.

What is the probability that a person who tests positive actually has zigma?

a. 9.99%

b. 1.09%

c. 8.68%

d. 5.01%

e. 9.51%

+2

Answers (1)

Know the Answer?

Rashad Faulkner · Answer 1

Option "A" is correct

Step-by-step explanation:

P (A) probability of event A is true

P (B) probability of event B is true

P (AB) probability of event AB is true

P (BA) probability of event BA is true

P (AB) = (BA) * (A) / (B)