anonymous
  • anonymous
Nathan had an infection, and his doctor wanted him to take penicillin. Because Nathan’s father and paternal grandfather were allergic to penicillin, Nathan had a 75% chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate. What is the probability that Nathan is allergic to penicillin and the test predicts it? 0.005 0.015 0.245 0.735
Mathematics
chestercat
  • chestercat
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cwrw238
  • cwrw238
the 2 probabilities mentioned here are with regard to the allergy and the accuracy of the test . These are independent of each other so in combination they are multiplied.
cwrw238
  • cwrw238
so we have 0.75 and 0.98
anonymous
  • anonymous
so 0.735

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cwrw238
  • cwrw238
correct
anonymous
  • anonymous
Thank you so much! Your are a life saver.
cwrw238
  • cwrw238
welcome

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