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- Dec 23, 2001
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Hi everyone,
When I took the MCATs last year, there were FOUR probability free questions on there that I did not know how to answer, for some reason, none are in the AMCAS VI.
I was wondering if someone could help me questions like these:
There are 200 men, 65% of whom have disease A. A scientist invents a test that can detect this particular disease A with a accuracy of 45%.
How many of the men tested actually had disease A but went undetected?
Would it just be 200 x .65 . 45 ?
Also, does anyone have a good site on how to approach probability questions? Thanks!
When I took the MCATs last year, there were FOUR probability free questions on there that I did not know how to answer, for some reason, none are in the AMCAS VI.
I was wondering if someone could help me questions like these:
There are 200 men, 65% of whom have disease A. A scientist invents a test that can detect this particular disease A with a accuracy of 45%.
How many of the men tested actually had disease A but went undetected?
Would it just be 200 x .65 . 45 ?
Also, does anyone have a good site on how to approach probability questions? Thanks!