New Posts For Thread: Random maths help needed.https://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-neededI have spent hours trying to work out some odds on two figures, google has failed hopefully one of you guys can help. So the question:if 40% of Millionaires are dyslexicand10 % of the public is dyslexic how much more likely is a dyslexic person to beI'm rchi adn I dont gvie a kfuc wath the aneswer ishttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613822#418613822I'm rchi adn I dont gvie a kfuc wath the aneswer isWed, 13 Jan 2010 06:14:06 -0600This is a Bayes' Theorem question. I make it:If M is Millionaires, D is Dyslexia.P(M|D) = P(D|M)P(M)/P(D) = 0.4 * P(A)/0.1 = 4 * P(M)https://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613762#418613762This is a Bayes' Theorem question. I make it:If M is Millionaires, D is Dyslexia.P(M|D) = P(D|M)P(M)/P(D) = 0.4 * P(A)/0.1 = 4 * P(M)Wed, 13 Jan 2010 02:14:10 -0600So based on those figures 4% of dyslexic people will be millionares?https://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613754#418613754So based on those figures 4% of dyslexic people will be millionares?Wed, 13 Jan 2010 00:30:54 -0600or (40/60)/(10/90)ie the percentageshttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613750#418613750or (40/60)/(10/90)ie the percentagesWed, 13 Jan 2010 00:30:31 -0600*assume the probability is 1 in 100as i say it doesn't matter, because the ratio between dyslexic and non dyslexic people is constant, so that proability cancels outhttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613746#418613746*assume the probability is 1 in 100as i say it doesn't matter, because the ratio between dyslexic and non dyslexic people is constant, so that proability cancels outWed, 13 Jan 2010 00:26:34 -0600i could be wrong but lets assume the natural frequency of millionaires amongst the public is 1 in 10000.(it doesn't actually matter what it is).so out of our 10000 people, we have 100 millionaires and 9900 peope who aren't millionaires.40 of those mihttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613742#418613742i could be wrong but lets assume the natural frequency of millionaires amongst the public is 1 in 10000.(it doesn't actually matter what it is).so out of our 10000 people, we have 100 millionaires and 9900 peope who aren't millionaires.40 of those miWed, 13 Jan 2010 00:23:49 -06001% of the public become self made millionaires, the percentage of millionaires is obviously hire due to the landed gentryhttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613738#4186137381% of the public become self made millionaires, the percentage of millionaires is obviously hire due to the landed gentryWed, 13 Jan 2010 00:19:35 -0600Thankyou DStyle how in gods name did you work that outhttps://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613734#418613734Thankyou DStyle how in gods name did you work that outWed, 13 Jan 2010 00:17:45 -0600Not sure why anyone would even want to know the answer to that.And what % of the public are millionaires? ;)https://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613730#418613730Not sure why anyone would even want to know the answer to that.And what % of the public are millionaires? ;)Wed, 13 Jan 2010 00:17:22 -0600its far too early to answer things like this,im not saying I could at any time mind you.https://community.betfair.com/chit_chat/go/thread/view/94038/23444894/random-maths-help-needed?post_id=418613726#418613726its far too early to answer things like this,im not saying I could at any time mind you.Wed, 13 Jan 2010 00:16:10 -0600