{"id":603,"date":"2005-03-14T09:00:00","date_gmt":"2005-03-14T16:00:00","guid":{"rendered":"http:\/\/kodegeek.com\/blog\/?p=603"},"modified":"2005-03-14T09:00:00","modified_gmt":"2005-03-14T16:00:00","slug":"rompecabezas-malditos-%c2%bfcual-es-la-probabilidad-de-que-aun-me-gane-un-ipod","status":"publish","type":"post","link":"http:\/\/kodegeek.com\/blog\/2005\/03\/14\/rompecabezas-malditos-%c2%bfcual-es-la-probabilidad-de-que-aun-me-gane-un-ipod\/","title":{"rendered":"Rompecabezas malditos: \u00bfCual es la probabilidad de que a\u00fan me gane un IPOD?"},"content":{"rendered":"

\"IPOD<\/a><\/p>\n

Bueno, el concurso de Cloudscape ya termin\u00f3 y a\u00fan no se si me van a dar un IPOD, una franela o nada :); Se que mi respuesta es correcta<\/a>, pero esto es lo que se sabe hasta ahora:<\/p>\n

<\/b><\/p>\n

Posted By:<\/b> moorman
Date:<\/b> 2005-03-07 09:52
Summary:<\/b> Cloudscape Database Challenge<\/a> <\/p>\n

Last week, we randomly selected the email addresses of those eligible to claim prizes in the Cloudscape Database Challenge. Prize winners will be announced as they are confirmed. The following winners have been confirmed to date:<\/p>\n

Name – Prize
——————-
David M. King – T-shirt
David L. Webster – T-shirt
Brian R. Szmyd – T-shirt
Nicholas Hodapp – iPod
Donald L. Fairall, Jr. – iPod
Waimun Yeow – iPod
James Eugene McCullough – iPod
Mark Paciga – iPod
Scott A. Dial – T-shirt
Benjamin Stoutenburgh – T-shirt
Lawrence Berlinski – T-shirt
Chris Kapp – T-shirt
Wayne Howell Fay – T-shirt
Avi Mosher – iPod
Iwona Dednarczyk – iPod<\/p>\n

Total contest entries: 8375<\/span>
Total correct answers: 2072<\/span><\/p>\n<\/blockquote>\n

Partiendo de esa informaci\u00f3n, \u00bfpodr\u00e9 responder estas dos preguntas, dada la informaci\u00f3n anterior?<\/p>\n

    \n
  1. \u00bfCual es la probabilidad de que me gane un IPOD?<\/li>\n
  2. \u00bfCual es la probabilidad de que me gane una franela?<\/li>\n<\/ol>\n

    Recordando, esta es la cantidad disponible de premios:<\/p>\n

    <\/span>
    you have a chance to win one of ten<\/span> 40gig Apple iPod<\/span> first-place<\/span>
    prizes, or <\/span>one of 50<\/span> SourceForge.net T-shirts<\/span> second-place prizes.<\/span><\/blockquote><\/span><\/tt><\/pre>\n
    Creo que ya tenemos todo lo que necesitamos para resolver el problema. Como siempre hay que reformular el problema en terminos que podamos usar para obtener la soluci\u00f3n.<\/p>\n
    Existe dos posibles eventos:<\/p>\n
      \n
    1. Ganarse un IPOD     = A<\/span> <\/li>\n
    2. Ganerse una Franela = B<\/span> <\/li>\n<\/ol>\n
       Y las probabilidades asociadas, dado que sabemos que ya han habido varios ganadores (lechudos ellos<\/span>):<\/p>\n
      P(A) = (10 – 7) \/ (2072 – 7 -8) = 3 \/ 2057<\/span> =  %0.15<\/span>
      P(B) = (50-8) (\/2072 – 7 -8)    =  42 \/ 2057<\/span> =  %2.041<\/span><\/p><\/blockquote>\n
      Ganarse el IPOD est\u00e1 un poco dificil, pero hey, tengo \u00a1%2 de ganarme la franela!, una probabilidad bastante decente. Asi que a\u00fan no pierdo las esperanzas. Lo otro es que si todos estos concursos tienen una probabilidad similar, entonces vale la pena participar.<\/p>\n","protected":false},"excerpt":{"rendered":"
      Bueno, el concurso de Cloudscape ya termin\u00f3 y a\u00fan no se si me van a dar un IPOD, una franela o nada :); Se que mi respuesta es correcta, pero esto es lo que se sabe hasta ahora: Posted By: moormanDate: 2005-03-07 09:52Summary: Cloudscape Database Challenge Last week, we randomly selected the email addresses of […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/posts\/603"}],"collection":[{"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/comments?post=603"}],"version-history":[{"count":0,"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/posts\/603\/revisions"}],"wp:attachment":[{"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/media?parent=603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/categories?post=603"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/kodegeek.com\/blog\/wp-json\/wp\/v2\/tags?post=603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}