Bound_up comments on Open Thread, Jun. 8 - Jun. 14, 2015 - Less Wrong

4 Post author: Gondolinian 08 June 2015 12:04AM

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Comment author: Bound_up 12 June 2015 11:17:52PM 0 points [-]

I may have used weak phrasing.

Each test returns positive. The frequency out of 20 go's that each does so correctly is indicated respectively by the "12," "16," and "12.5."

So really, it's the odds of actually having the disease, given the three positive test results, I guess. Would it be 1/2 under those circumstances?

Thank you for your assistance.

Comment author: polymathwannabe 12 June 2015 11:28:12PM 1 point [-]

You also need to consider the odds of a false positive for each test.