{"id":3367,"date":"2009-08-13T03:00:22","date_gmt":"2009-08-13T08:00:22","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=3367"},"modified":"2009-08-13T03:00:22","modified_gmt":"2009-08-13T08:00:22","slug":"mistakes-what-were-the-odds-of-that","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/3367","title":{"rendered":"Mistakes?  What Were the Odds of That?"},"content":{"rendered":"<p><a href=\"http:\/\/www.newscientist.com\/article\/mg20327202.600-whats-luck-got-to-do-with-it-the-maths-of-gambling.html\">What&#8217;s luck got to do with it? The maths of gambling<\/a><\/p>\n<blockquote><p>He wasn&#8217;t on a lucky streak, he was using his knowledge of mathematics to understand, and beat, the odds.<\/p><\/blockquote>\n<p>&#8220;Beat the odds&#8221; isn&#8217;t quite as bad as &#8220;defies the laws of physics,&#8221; I think.  But exploiting knowledge of the odds to win isn&#8217;t beating the odds.  Beating the odds is winning when you shouldn&#8217;t \u2014 drawing to an inside straight and hitting it to win a hand is beating the odds.  Exploiting the situation to make the odds go in your favor \u2014 making it so you should win more than you lose \u2014 is not.<\/p>\n<blockquote><p>A spin of the roulette wheel is just like the toss of a coin. Each spin is independent, with a 50:50 chance of the ball landing on black or red. <\/p><\/blockquote>\n<p>Well, no.  A roulette wheel has 37 or 38 slots, depending on where you play, with 36 of them being black or red.  The others are green \u2014 0 and 00 (Europe has one, the US has both.  Sort of.)  That&#8217;s why the house makes profit offering &#8220;even money&#8221; on black or red bets on a US wheel; the probability of winning is slightly less than 50%.  (They also make money on the single-number payouts, at 35:1)  All of the bets on a 00 roulette wheel have a house advantage <a href=\"http:\/\/wizardofodds.com\/roulette\">of at least 5.26%<\/a>; single-0 wheels have a smaller house advantage but there also seems to be a correlation with higher-stakes limits. The previous link also presents a section on debunking the &#8220;doubling down&#8221; method for roulette.  Winning at roulette is truly &#8220;beating the odds&#8221; since the house always has an advantage.<\/p>\n<p>So please don&#8217;t follow the advice here.  But note this:<\/p>\n<blockquote><p>For what it is worth, the sum of all the numbers in roulette is 666.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>What&#8217;s luck got to do with it? The maths of gambling He wasn&#8217;t on a lucky streak, he was using his knowledge of mathematics to understand, and beat, the odds. &#8220;Beat the odds&#8221; isn&#8217;t quite as bad as &#8220;defies the &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/3367\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,28],"tags":[],"class_list":["post-3367","post","type-post","status-publish","format-standard","hentry","category-journalism","category-math"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/3367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=3367"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/3367\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=3367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=3367"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=3367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}