{"id":139212,"date":"2023-03-30T11:51:00","date_gmt":"2023-03-30T06:21:00","guid":{"rendered":"https:\/\/www.kopykitab.com\/blog\/?p=139212"},"modified":"2023-03-30T14:31:40","modified_gmt":"2023-03-30T09:01:40","slug":"rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data","status":"publish","type":"post","link":"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/","title":{"rendered":"RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data 2023"},"content":{"rendered":"\n<p><img class=\"alignnone size-full wp-image-139345\" src=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/10\/Chapter-18-Mean-Median-and-Mode-of-Ungrouped-Data.jpg\" alt=\"RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/10\/Chapter-18-Mean-Median-and-Mode-of-Ungrouped-Data.jpg 1200w, https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/10\/Chapter-18-Mean-Median-and-Mode-of-Ungrouped-Data-768x432.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><strong>RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data: <\/strong>Begin your Class 9 Maths exam prep with the RS Aggarwal Solutions Class 9 Maths. All the solutions of <a href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-class-9-maths-solutions\/\" target=\"_blank\" rel=\"noopener\">RS Aggarwal Solutions Class 9 Maths<\/a> Chapter 18 Mean Median and Mode of Ungrouped Data are designed by subject matter experts and will be helpful for your class assignments as well.<\/p>\n<p>To download the Free PDF of RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data, use the link given in this blog. To know more, read the whole blog.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_47_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69d08def76741\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69d08def76741\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#download-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\" title=\"Download RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF\">Download RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-%e2%80%93-overview\" title=\"RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data &#8211; Overview\">RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data &#8211; Overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#faqs-on-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\" title=\"FAQs on RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data\">FAQs on RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#from-where-can-i-find-the-download-link-for-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\" title=\"From where can I find the download link for the RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?\">From where can I find the download link for the RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#how-much-does-it-cost-to-download-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\" title=\"How much does it cost to download the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?\">How much does it cost to download the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#can-i-access-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf-offline\" title=\"Can I access the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF Offline?\">Can I access the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF Offline?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#what-is-primary-data\" title=\"What is primary data?\">What is primary data?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/#what-is-the-mode\" title=\"What is the mode?\">What is the mode?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"download-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\"><\/span>Download RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/10\/RS-Aggarwal-Solutions-Class-9-Maths-Chapter-18-Mean-Median-and-Mode-of-Ungrouped-Data.pdf\" target=\"_blank\" rel=\"noopener\">RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data<\/a><\/p>\n<div id=\"example1\" style=\"text-align: justify;\">\u00a0<\/div>\n<p style=\"text-align: justify;\"><style>\n.pdfobject-container { height: 500px;}<br \/>\n.pdfobject { border: 1px solid #666; }<br \/>\n<\/style><\/p>\n<p style=\"text-align: justify;\"><script src=\"https:\/\/www.kopykitab.com\/_utility\/js\/pdfobject.min.js\"><\/script><br \/><script>PDFObject.embed(\"https:\/\/www.kopykitab.com\/blog\/wp-content\/uploads\/2021\/10\/RS-Aggarwal-Solutions-Class-9-Maths-Chapter-18-Mean-Median-and-Mode-of-Ungrouped-Data.pdf\", \"#example1\");<\/script><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-%e2%80%93-overview\"><\/span>RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data &#8211; Overview<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To cover Chapter 18 of RS Aggarwal Solutions Class 9 Maths, you must cover the following important topics.<\/p>\n<ul>\n<li>There are mainly 2 types of data, i.e., Primary and secondary.<\/li>\n<\/ul>\n<ol>\n<li>Primary Data: Data was collected after conducting surveys, interviews, and extensive research. These data are first-hand sources.<\/li>\n<li>Secondary Data: Data collected by someone other than the user.<\/li>\n<\/ol>\n<ul>\n<li>You can present the data in two ways, i.e., ungrouped and grouped.<\/li>\n<\/ul>\n<ol>\n<li>Ungrouped data: Data that is not categorized after the collection is called ungrouped data. Eg:\n<p dir=\"ltr\">The height of 5 students is 158,160,170,166,166. Find the range of the data given.<\/p>\n<p dir=\"ltr\">Solution:<\/p>\n<p dir=\"ltr\">Range = Highest number \u2013 lowest number = 170-158 = 12<\/p>\n<\/li>\n<li>Grouped data: Data that is organized in the form of a distribution table is known as Grouped Data. Eg:<\/li>\n<\/ol>\n<table><colgroup><col width=\"106\" \/><col width=\"148\" \/><\/colgroup>\n<tbody>\n<tr>\n<td>\n<p dir=\"ltr\">Class\u00a0<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">Frequency<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">10-20<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">7<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">20-30<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">10<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">30-40<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">12<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">40-50<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">14<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p dir=\"ltr\">50-60<\/p>\n<\/td>\n<td>\n<p dir=\"ltr\">16<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>The Concept Of Grouped Data<\/li>\n<\/ul>\n<ol>\n<li>Class Intervals: 10-20, 20-30, 30-40, and so on are the class intervals.<\/li>\n<li>Lower Limit: It is the smallest number in the class interval. Eg: 10-20, 20 in 20-30.<\/li>\n<li>Upper Limit: It is the greatest number in the class interval is called the upper limit. Eg: 20 in 10-20, 30 in 20-30.<\/li>\n<li>Class size: The difference between the smallest and the greatest number in the class interval. Eg: Class interval in 19.5 &#8211; 9.5 = 19.5 &#8211; 9.5 = 10.<\/li>\n<li>Classmark: It is the m<span style=\"font-size: inherit; background-color: initial;\">idpoint between the class interval.<\/span>\n<p dir=\"ltr\">Classmark = Lower limit + Upper limit\/2\u00a0<\/p>\n<\/li>\n<\/ol>\n<ul>\n<li>Measures OF Central Tendency<\/li>\n<\/ul>\n<ol>\n<li>Mean: The average of all the observations, denoted by x\u0304. \u00a0\n<p dir=\"ltr\">x\u0304 = x<sub>1<\/sub> + x<sub>2<\/sub> + x<sub>3<\/sub> +&#8230;x<sub>n<\/sub>\/n (ungrouped data)<\/p>\n<p dir=\"ltr\">x\u0304 = x<sub>1<\/sub>f<sub>1<\/sub> + x<sub>2<\/sub>f<sub>2<\/sub> +&#8230;.x<sub>n<\/sub>f<sub>n<\/sub>\/f<sub>1<\/sub> + f<sub>2<\/sub> + &#8230; + f<sub>n<\/sub> (grouped data).<\/p>\n<\/li>\n<li>Median: The middlemost value from the given set of observations.<\/li>\n<\/ol>\n<p dir=\"ltr\">Median = (n+1)\/2nd\u00a0observation value (if n is odd).<\/p>\n<p dir=\"ltr\">Median = n\/2<sup>th<\/sup> and (n\/2 + 1)<sup>th<\/sup> observation value (if n is even).<\/p>\n<p>3. Mode: The observation that has the maximum frequency.<\/p>\n<p style=\"font-weight: 400;\">This is the complete blog on the RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data. To know more about the <a href=\"https:\/\/www.cbse.gov.in\/\" target=\"_blank\" rel=\"noopener\">CBSE<\/a> Class 9 Maths exam, ask in the comments.\u00a0<\/p>\n<h2><span class=\"ez-toc-section\" id=\"faqs-on-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\"><\/span>FAQs on RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1634213936986\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"from-where-can-i-find-the-download-link-for-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\"><\/span>From where can I find the download link for the RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can find the download link of RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF in the above blog.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1634213945919\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"how-much-does-it-cost-to-download-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf\"><\/span>How much does it cost to download the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>You can download RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF for free.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1634213963694\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"can-i-access-the-rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data-pdf-offline\"><\/span>Can I access the\u00a0RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF Offline?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Once you have downloaded the RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data PDF online, you can access it offline whenever you want.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1634756701796\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"what-is-primary-data\"><\/span>What is primary data?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Data was collected after conducting surveys, interviews, and extensive research. These data are first-hand sources.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-1634756722028\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \"><span class=\"ez-toc-section\" id=\"what-is-the-mode\"><\/span>What is the mode?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"rank-math-answer \">\n\n<p>The observation has the maximum frequency.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data: Begin your Class 9 Maths exam prep with the RS Aggarwal Solutions Class 9 Maths. All the solutions of RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data are designed by subject matter experts &#8230; <a title=\"RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data 2023\" class=\"read-more\" href=\"https:\/\/www.kopykitab.com\/blog\/rs-aggarwal-solutions-class-9-maths-chapter-18-mean-median-and-mode-of-ungrouped-data\/\" aria-label=\"More on RS Aggarwal Solutions Class 9 Maths Chapter 18 Mean Median and Mode of Ungrouped Data 2023\">Read more<\/a><\/p>\n","protected":false},"author":243,"featured_media":139345,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":""},"categories":[1],"tags":[3089,77325,77371],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/139212"}],"collection":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/users\/243"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/comments?post=139212"}],"version-history":[{"count":5,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/139212\/revisions"}],"predecessor-version":[{"id":341053,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/139212\/revisions\/341053"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media\/139345"}],"wp:attachment":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media?parent=139212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/categories?post=139212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/tags?post=139212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}