4.1 various outcomes in medical screening

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The chances of true pos are:

For 10000 patients, each with probability = 0.009, on average there will be 90 true pos.

Probability

  • 0.009000
  • As a percentage

  • 0.9000%
  • As a rounded-off proportion

  • 9 in 1000
  • As approximate fair betting odds

  • 1100 : 10
  • Representative example

    For true pos

  • 10000 chances for true pos
  • Observed true pos: 89 = 0.890% (expected average: 90 = 0.900%)
  • What are the Chances of That? - The Book

    Five reasons that we find it hard to think about uncertainty. To be published by Oxford University Press in 2021.

    Click here to learn more about it.

    http://itabn.tumblr.com/post/138631317782/this-website