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Math Help - Find Percentage...

  1. #1
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    Find Percentage...

    A study of Georgia residents suggests that those who worked in shipyards during WWII were subjected to a significantly higher risk of lung cancer. It was found that approx. 22% of those persons who had lung cancer worked at some prior time in a shipyard. IN contrast, only 14% of those who had no lung cancer worked at some prior time in a shipyard. Suppose that the proportion of all Georgians living during WWII who have or will have contracted lung cancer is .04%. Fin the percentage of Georgians living during the same period who will contract (or have contracted) lung cancer, given that they have at some prior time worked in a shipyard.

    Thanks for any help!!
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by jzellt View Post
    A study of Georgia residents suggests that those who worked in shipyards during WWII were subjected to a significantly higher risk of lung cancer. It was found that approx. 22% of those persons who had lung cancer worked at some prior time in a shipyard. IN contrast, only 14% of those who had no lung cancer worked at some prior time in a shipyard. Suppose that the proportion of all Georgians living during WWII who have or will have contracted lung cancer is .04%. Fin the percentage of Georgians living during the same period who will contract (or have contracted) lung cancer, given that they have at some prior time worked in a shipyard.

    Thanks for any help!!
    Well this looks like an exercise in the use of Bayes theorem, so what have you tries??

    CB
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