THis is a logic question. Is the answer 100%?
0.1% of the population has the disease purpleitis, which makes your hair spontaneously turn purple. There is a test to see if you have purpleitis that is 100% accurate. If you test positive for purpleitis, what is the probability that you actually have purpleitis?

Question

THis is a logic question. Is the answer 100%?
 0.1% of the population has the disease purpleitis, which makes your hair spontaneously turn purple. There is a test to see if you have purpleitis that is 100% accurate. If you test positive for purpleitis, what is the probability that you actually have purpleitis?

baldymcgee6 · Answer

100%

baldymcgee6 · Answer

if the test is 100% accurate and you test positive, then there is 0% chance that you do not have purpleitis.. btw thats not a real disease ;)

anonymous · Answer

Alright thanks! Just making sure :)