tag:blogger.com,1999:blog-6894866515532737257.post2359903811026635882..comments2017-02-21T12:48:02.271-08:00Comments on Probably Overthinking It: A nice Bayes theorem problem: medical testingAllen Downeyhttps://plus.google.com/111942648516576371054noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-6894866515532737257.post-6617413490974662692017-02-18T17:26:27.722-08:002017-02-18T17:26:27.722-08:00I have a question though. I mentioned that this qu...I have a question though. I mentioned that this question was taken from the MIT 2006 OCW final exam for computer science. The solution was also available on the internet. Even though they have mentioned the answer to be 5/13 I.e. 10/26 but there's some calculation error in their method. The correct answer according to their method is 25/63. But I really don't understand why they did the question that way. I'm adding the links to both the question and the answer here. It's the fourth question. <br /><a href="https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2010/exams/MIT6_042JF10_fnl_2006_sol.pdf&ved=0ahUKEwiWmOT3-5rSAhVCpo8KHbR6DbMQFgglMAA&usg=AFQjCNGh_rIRn7AyI4WO9Paj9m-iq_riUw&sig2=ZbyrZqKgd6YJaSjmAEWhIg" rel="nofollow">answer</a><br /><a href="https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2010/exams/MIT6_042JF10_final_2006.pdf&ved=0ahUKEwiWmOT3-5rSAhVCpo8KHbR6DbMQFggoMAE&usg=AFQjCNGfuqKhxH7H6Wpbt4nB9DjAWN4JvA&sig2=GmFaDfgVkq0T3cb3O3BeuA" rel="nofollow">question</a><br />Riyahttp://www.blogger.com/profile/05095295993427070799noreply@blogger.comtag:blogger.com,1999:blog-6894866515532737257.post-12877653335172783042017-02-18T10:34:12.984-08:002017-02-18T10:34:12.984-08:00This comment has been removed by the author.Riyahttp://www.blogger.com/profile/05095295993427070799noreply@blogger.comtag:blogger.com,1999:blog-6894866515532737257.post-78346079788040356192017-02-17T12:24:31.688-08:002017-02-17T12:24:31.688-08:00I have corrected that error. Thanks!I have corrected that error. Thanks!Allen Downeyhttp://www.blogger.com/profile/01633071333405221858noreply@blogger.comtag:blogger.com,1999:blog-6894866515532737257.post-14487104130235535242017-02-17T10:13:13.953-08:002017-02-17T10:13:13.953-08:00I enjoyed the problem, but I got a different answe...I enjoyed the problem, but I got a different answer. I thought the prior for TEST1 was 2/3.David Bodyhttp://www.blogger.com/profile/09987602296796651688noreply@blogger.comtag:blogger.com,1999:blog-6894866515532737257.post-20559111740998241692017-02-17T07:26:52.253-08:002017-02-17T07:26:52.253-08:00Thanks for letting me know about the source of the...Thanks for letting me know about the source of the problem. If you have a link, I'll include it in the article.Allen Downeyhttp://www.blogger.com/profile/01633071333405221858noreply@blogger.comtag:blogger.com,1999:blog-6894866515532737257.post-69936903023640887172017-02-17T07:16:54.521-08:002017-02-17T07:16:54.521-08:00Hey thanks Mr. Allen for taking up the question.I ...Hey thanks Mr. Allen for taking up the question.I would just like to mention that I came across this question from the MIT OCW final exam for computer science.<br />I have thought of two approaches and of course they're giving different answers, although I'm a little biased towards one of the approaches. I would be really glad if I could finally understand what's happening in this question. Riyahttp://www.blogger.com/profile/05095295993427070799noreply@blogger.com