{"id":109388,"date":"2020-01-29T18:13:42","date_gmt":"2020-01-29T17:13:42","guid":{"rendered":"https:\/\/www.superprof.es\/diccionario\/estadistica\/intervalo-clase.html"},"modified":"2024-05-27T17:50:46","modified_gmt":"2024-05-27T15:50:46","slug":"intervalo-clase","status":"publish","type":"post","link":"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\/intervalo-clase.html","title":{"rendered":"Intervalo de clase"},"content":{"rendered":"<section style=\"\">\n<p class=\"\">Los <strong>intervalos de clase<\/strong> se emplean si las <strong>variables<\/strong> toman un <strong>n\u00famero grande de valores<\/strong> o la <strong>variable es continua<\/strong>. <\/p>\n<p class=\"\">Se <strong>agrupan<\/strong> los <strong>valores<\/strong> en <strong>intervalos<\/strong> que tengan la <strong>misma amplitud<\/strong> denominados <strong>clases<\/strong>.  A cada <strong>clase<\/strong> se le asigna su <strong>frecuencia correspondiente<\/strong>.<\/p>\n<h2 class=\"te\">L\u00edmites de la clase<\/h2>\n<p class=\"\">Cada <strong>clase<\/strong> est\u00e1 <strong>delimitada<\/strong> por el <strong>l\u00edmite inferior de la clase<\/strong> y el <strong>l\u00edmite superior de la clase<\/strong>.<\/p>\n<h2 class=\"te\">Amplitud de la clase<\/h2>\n<p class=\"\">La <strong>amplitud de la clase<\/strong> es la <strong>diferencia<\/strong> entre el  <strong>l\u00edmite superior e inferior<\/strong> de la <strong>clase<\/strong>.<\/p>\n<h2 class=\"te\">Marca de clase<\/h2>\n<p class=\"\">La <strong>marca de clase<\/strong> es el <strong>punto medio<\/strong> de cada <strong>intervalo<\/strong> y es el <strong>valor<\/strong> que representa a todo el <strong>intervalo<\/strong> para el <strong>c\u00e1lculo<\/strong> de algunos <strong>par\u00e1metros<\/strong>.<\/p>\n<h2 class=\"r\" style=\"margin-top:30px;\">Construcci\u00f3n de una tabla con Intervalos de clase<\/h2>\n<p class=\"\">3, 15, 24, 28, 33, 35, 38, 42, 43, 38, 36, 34, 29, 25, 17, 7, 34, 36, 39, 44, 31, 26, 20, 11, 13, 22, 27, 47, 39, 37, 34, 32, 35, 28, 38, 41, 48, 15, 32, 13.<\/p>\n<p class=\"\">1\u00ba se localizan los valores menor y mayor de la distribuci\u00f3n. En este caso son 3 y 48.<\/p>\n<p class=\"\">2\u00ba Se restan y se busca un n\u00famero entero un poco mayor que la diferencia y que sea divisible por el n\u00famero de intervalos de queramos poner. <\/p>\n<p class=\"\">Es conveniente que el n\u00famero de intervalos oscile entre 6 y 15.<\/p>\n<p class=\"\">En este caso, 48 - 3 = 45, incrementamos el n\u00famero hasta 50 : 5 = 10 intervalos.<\/p>\n<p class=\"\">Se forman los intervalos teniendo presente que el l\u00edmite inferior de una clase pertenece al intervalo, pero el l\u00edmite superior no pertenece intervalo, se cuenta en el siguiente intervalo.<\/p>\n<table width=\"60%\" border=\"1\" class=\"t_izq\" cellspacing=\"0\" cellpadding=\"6\">\n<tr>\n<td> <\/td>\n<th>c<sub>i<\/sub><\/th>\n<th>f<sub>i<\/sub><\/th>\n<th>F<sub>i<\/sub><\/th>\n<th>n<sub>i<\/sub><\/th>\n<th>N<sub>i<\/sub><\/th>\n<\/tr>\n<tr>\n<th>[0, 5)<\/th>\n<td>2.5<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>0.025<\/td>\n<td>0.025<\/td>\n<\/tr>\n<tr>\n<th>[5, 10)<\/th>\n<td>7.5<\/td>\n<td>1<\/td>\n<td>2<\/td>\n<td>0.025<\/td>\n<td>0.050<\/td>\n<\/tr>\n<tr>\n<th>[10, 15)<\/th>\n<td>12.5<\/td>\n<td>3<\/td>\n<td>5<\/td>\n<td>0.075<\/td>\n<td>0.125<\/td>\n<\/tr>\n<tr>\n<th>[15, 20)<\/th>\n<td>17.5<\/td>\n<td>3<\/td>\n<td>8<\/td>\n<td>0.075<\/td>\n<td>0.200<\/td>\n<\/tr>\n<tr>\n<th>[20, 25)<\/th>\n<td>22.5<\/td>\n<td>3<\/td>\n<td>11<\/td>\n<td>0.075<\/td>\n<td>0.2775<\/td>\n<\/tr>\n<tr>\n<th>[25, 30)<\/th>\n<td>27.5<\/td>\n<td>6<\/td>\n<td>17<\/td>\n<td>0.150<\/td>\n<td>0.425<\/td>\n<\/tr>\n<tr>\n<th>[30, 35)<\/th>\n<td>32.5<\/td>\n<td>7<\/td>\n<td>24<\/td>\n<td>0.175<\/td>\n<td>0.600<\/td>\n<\/tr>\n<tr>\n<th>[35, 40)<\/th>\n<td>37.5<\/td>\n<td>10<\/td>\n<td>34<\/td>\n<td>0.250<\/td>\n<td>0.850<\/td>\n<\/tr>\n<tr>\n<th>[40, 45)<\/th>\n<td>42.5<\/td>\n<td>4<\/td>\n<td>38<\/td>\n<td>0.100<\/td>\n<td>0.950<\/td>\n<\/tr>\n<tr>\n<th>[45, 50)<\/th>\n<td>47.5<\/td>\n<td>2<\/td>\n<td>40<\/td>\n<td>0.050<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td> <\/td>\n<td> <\/td>\n<th style=\"color:#900;\">40<\/th>\n<td> <\/td>\n<th style=\"color:#900;\">1<\/th>\n<td> <\/td>\n<\/tr>\n<\/table>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Los intervalos de clase se emplean si las variables toman un n\u00famero grande de valores o la variable es continua. Se agrupan los valores en intervalos que tengan la misma amplitud denominados clases. A cada clase se le asigna su frecuencia correspondiente. L\u00edmites de la clase Cada clase est\u00e1 delimitada por el l\u00edmite inferior de [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[380],"tags":[368],"class_list":["post-109388","post","type-post","status-publish","format-standard","hentry","category-estadistica","tag-i"],"acf":[],"author_meta":{"display_name":"Andra","author_link":"https:\/\/www.superprof.es\/diccionario\/author\/andra"},"featured_img":null,"coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\" class=\"advgb-post-tax-term\">Estad\u00edstica<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Estad\u00edstica<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\" class=\"advgb-post-tax-term\">i<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">i<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Publicado 6 a\u00f1os hace","modified":"Actualizado 2 a\u00f1os hace"},"absolute_dates":{"created":"Publicado el 29 enero 2020","modified":"Actualizado el 27 mayo 2024"},"absolute_dates_time":{"created":"Publicado el 29 enero 2020 18 h 13 min","modified":"Actualizado el 27 mayo 2024 17 h 50 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/109388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/comments?post=109388"}],"version-history":[{"count":1,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/109388\/revisions"}],"predecessor-version":[{"id":136179,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/109388\/revisions\/136179"}],"wp:attachment":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/media?parent=109388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/categories?post=109388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/tags?post=109388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}