{"id":867,"date":"2016-08-24T09:48:10","date_gmt":"2016-08-24T14:48:10","guid":{"rendered":"http:\/\/blog.espol.edu.ec\/estg1003\/?p=867"},"modified":"2026-04-12T13:19:19","modified_gmt":"2026-04-12T18:19:19","slug":"1eva2010tii_t3-fiec-varianza-y-covarianza","status":"publish","type":"post","link":"https:\/\/blog.espol.edu.ec\/algoritmos101\/stp-1eva\/1eva2010tii_t3-fiec-varianza-y-covarianza\/","title":{"rendered":"1Eva2010TII_T3 FIEC Varianza y Covarianza"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1ra Evaluaci\u00f3n II T\u00e9rmino 2010-2011. Diciembre, 2010. FIEC03236<\/h2>\n\n\n\n<p><strong>Tema 3<\/strong> (25 puntos) En una rifa se sacan n\u00fameros aleatorios de dos t\u00f3mbolas separadas, donde los n\u00fameros posibles de cada t\u00f3mbola son:<\/p>\n\n\n\n<figure class=\"wp-block-image alignright\"><a href=\"https:\/\/blog.espol.edu.ec\/algoritmos101\/estg1003\/files\/2017\/07\/tombolas2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"346\" height=\"152\" src=\"https:\/\/blog.espol.edu.ec\/algoritmos101\/estg1003\/files\/2017\/07\/tombolas2.png\" alt=\"\" class=\"wp-image-870\" \/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>t\u00f3mbola A: -1, 0 y 1<\/li>\n\n\n\n<li>t\u00f3mbola B: 1,2,3<\/li>\n<\/ul>\n\n\n\n<p>Sea i el n\u00famero que se obtiene en la t\u00f3mbola A y <em>k<\/em> el de la t\u00f3mbola B.<\/p>\n\n\n\n<p>Si se definen las variables aleatorias <strong>X<\/strong>=|i-<em>k<\/em>| y <strong>Y<\/strong>=i+<em>k<\/em>, determine<\/p>\n\n\n\n<p>a) P[<strong>X<\/strong>\u00a0 \u2264 2]<\/p>\n\n\n\n<p>b) Dibuje la f<sub>Y<\/sub>(<strong>Y <\/strong>|x=1)<\/p>\n\n\n\n<p>c) Var(<strong>X <\/strong>|y=0)<\/p>\n\n\n\n<p>d) Cov(<strong>X<\/strong>, <strong>Y<\/strong>)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1ra Evaluaci\u00f3n II T\u00e9rmino 2010-2011. Diciembre, 2010. FIEC03236 Tema 3 (25 puntos) En una rifa se sacan n\u00fameros aleatorios de dos t\u00f3mbolas separadas, donde los n\u00fameros posibles de cada t\u00f3mbola son: Sea i el n\u00famero que se obtiene en la t\u00f3mbola A y k el de la t\u00f3mbola B. Si se definen las variables aleatorias [&hellip;]<\/p>\n","protected":false},"author":8043,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"wp-custom-template-entrada-stp-ejercicios","format":"standard","meta":{"footnotes":""},"categories":[208],"tags":[],"class_list":["post-867","post","type-post","status-publish","format-standard","hentry","category-stp-1eva"],"_links":{"self":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/users\/8043"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/comments?post=867"}],"version-history":[{"count":4,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/867\/revisions"}],"predecessor-version":[{"id":23494,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/867\/revisions\/23494"}],"wp:attachment":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/media?parent=867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/categories?post=867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/tags?post=867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}