Hi everone,(adsbygoogle = window.adsbygoogle || []).push({});

Really stuck on this one, if anyone has any suggestions I would be more than greatful!

Problem:

A HIV test detects at 90% accuracy

It falsly detects people as positive without HIV at 2%

and it is estimated that 50% of the tested patients have HIV

I need to work out the probability that a person does not have HIV and the test is negative?

... but first Im still confused to how to seperate all the conditions, my teacher suggested using contingency tables but the ones I draw up dont make sense to me

Can anyone help? :yuck:

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# Homework Help: Accuracy of HIV test - probability

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