{"id":3584,"date":"2013-04-01T18:28:50","date_gmt":"2013-04-01T18:28:50","guid":{"rendered":"http:\/\/www.latinhire.com\/material\/?p=137"},"modified":"2014-06-28T08:22:00","modified_gmt":"2014-06-28T08:22:00","slug":"conjuntos-y-probabilidades-ejemplo-de-una-excelente-tutoria-de-estadistica","status":"publish","type":"post","link":"https:\/\/www.latinhire.com\/es\/conjuntos-y-probabilidades-ejemplo-de-una-excelente-tutoria-de-estadistica\/","title":{"rendered":"Conjuntos y Probabilidades: Ejemplo de una excelente tutor\u00eda de Estad\u00edstica"},"content":{"rendered":"

Comentarios de la Tutora:<\/strong> La tutor\u00eda se llevo a cabo en el tiempo previsto para su resoluci\u00f3n, utilizando el m\u00e9todo propuesto por el estudiante y\u00a0acompa\u00f1\u00e1ndolo\u00a0en el desarrollo del mismo. En todo momento se busc\u00f3 que el estudiante se sintiera involucrado en el trabajo y entendiera qu\u00e9 se estaba haciendo.<\/p>\n

La tutor\u00eda:<\/strong><\/p>\n

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

 <\/p>\n

Student Question:<\/strong> Employment data at a large company reveal that 72% of workers are married, that 44% are college graduates, and that half of the college grads are married. What’s the probability that a randomly chosen worker is: a) neither married nor a college graduate? b) is married but not a college graduate? c) is married 9or a college graduate?<\/p>\n

 <\/p>\n

Tutor<\/strong>: Welcome! My name is Anahid. How are you?<\/p>\n

 <\/p>\n

Student<\/strong>: Good. U?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: I’m great! Thanks. Tell me, what can I do for you today?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: I have a entire assignment to do like the problem stated, and I’m not sure how to get it solved. I started with a contingency table, but that’s it…<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor: <\/strong>well done!<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: that’s as far as i get….<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: check that we also know the totals, how many of them are married?<\/p>\n

well done!, check that married and not married must sum 100%
\nhow many are not married?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 56?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: well done!(but 56 is for not college)<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: oh, sorry<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Very close —\u00a0let’s take another look and see what we missed.
\nwe are setting college graduates on the line
\nand married on the column<\/p>\n

44% are college graduates<\/p>\n

so 100%-44%=56% are not college graduates<\/p>\n

Do you understand how we did that last part?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: \u00a0No
\nI do. the complimentary rule?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: that’s right!<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: okay. I follow you now! \ud83d\ude42<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: let’s do the same with the married on the last column
\n72% are married, how much are not married?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 28%<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Excellent!\u00a0 You did that step perfectly.
\nDo you know what to do next?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: for college grad and not married, it would be 22%, is that correct?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Perfect!\u00a0 Good work.
\nwhat about for married and not college grad?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 50%?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Great job on that one! Nicely done.<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: \ud83d\ude00<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: can you complete the table?
\nYou got it!<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: yay!<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: now we are ready to answer the questions<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: okay<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: how much is the answer on letter a?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 6% ??<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: well done!
\nwhat about letter b?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 50%<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Perfect!\u00a0 Good work.
\nwhat about the last one?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 31.7%?
\n72% x44%?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Very close —\u00a0let’s take another look and see what we missed.
\nlet’s focus on the center of the table<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: okay<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: can you circle the ones that are married?
\nwell done!
\nwhat about the ones that are college graduates?
\nwell done!
\nif we were to find the ones that are married OR college grad we should add all the circles
\nhow much will that be?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: 94%?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: Great job on that one! Nicely done.
\nDoes this problem make sense to you now?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: or = addition?<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: yes, but be careful, we did not add 44% and 72%<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: haha… too much!!!
\nbecause they could be married and not grad, grad and not married, and married or grad… all three are feasable choices!!??<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: that’s right, but if we added 44%+72% we will be counting the 22% od the intersection twice<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: I get it!!! Makes sense now!<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor<\/strong>: check that 44%+72%-22%=94%
\nDo you have any questions about anything we went over today?<\/p>\n

\u00a0<\/strong><\/p>\n

Student<\/strong>: No, everything was great!. Very good explanation of everything! Have a good evening!<\/p>\n

\u00a0<\/strong><\/p>\n

Tutor: <\/strong>Thank you, Have a good evening too!<\/p>\n

 <\/p>\n

Colaboradora: Anahid Bauer, Tutora Argentina de Estad\u00edstica<\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Comentarios de la Tutora: La tutor\u00eda se llevo a cabo en el tiempo previsto para su resoluci\u00f3n, utilizando el m\u00e9todo propuesto por el estudiante y\u00a0acompa\u00f1\u00e1ndolo\u00a0en el desarrollo del mismo. En todo momento se busc\u00f3 que el estudiante se sintiera involucrado en el trabajo y entendiera qu\u00e9 se estaba haciendo. La tutor\u00eda:   Student Question: Employment…<\/p>\n","protected":false},"author":9,"featured_media":3651,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[89,90],"tags":[],"post_series":[],"class_list":["post-3584","post","type-post","status-publish","format-gallery","has-post-thumbnail","hentry","category-ejemplos-de-tutorias","category-estadistica","post_format-post-format-gallery","entry","has-media"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/3584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/comments?post=3584"}],"version-history":[{"count":1,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/3584\/revisions"}],"predecessor-version":[{"id":3652,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/posts\/3584\/revisions\/3652"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/media\/3651"}],"wp:attachment":[{"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/media?parent=3584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/categories?post=3584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/tags?post=3584"},{"taxonomy":"post_series","embeddable":true,"href":"https:\/\/www.latinhire.com\/es\/wp-json\/wp\/v2\/post_series?post=3584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}