{"id":1876,"date":"2023-07-19T18:46:59","date_gmt":"2023-07-19T18:46:59","guid":{"rendered":"https:\/\/content.one.lumenlearning.com\/introstatstest\/?post_type=chapter&#038;p=1876"},"modified":"2025-08-31T10:25:07","modified_gmt":"2025-08-31T10:25:07","slug":"module-1-background-youll-need-3","status":"publish","type":"chapter","link":"https:\/\/content.one.lumenlearning.com\/introstatstest\/chapter\/module-1-background-youll-need-3\/","title":{"raw":"Module 1: Background You'll Need 3","rendered":"Module 1: Background You&#8217;ll Need 3"},"content":{"raw":"<section class=\"textbox learningGoals\" aria-label=\"Learning Goals\">\r\n<ul>\r\n\t<li>Find the average value of a set of numbers<\/li>\r\n<\/ul>\r\n<\/section>\r\n<h2>Average Value<\/h2>\r\n<p>To make sense of data, we often want to explore it and summarize it using different numerical measures, such as percentages or averages. To understand the typical number of times something happens, we can calculate the\u00a0<strong>average<\/strong> or <strong>mean <\/strong>of the values. The average is calculated by adding the values and then dividing the total by the number of values in the data set.<\/p>\r\n<section class=\"textbox keyTakeaway\">\r\n<div>\r\n<h3>mean (average)<\/h3>\r\n<p>To calculate the mean of a data set, add up all the values selected and divide by the number of values you totaled.<\/p>\r\n<p><br \/>\r\nFormula: [latex]\\text{Mean or Average}=\\dfrac{\\text{Sum of the values in the sample}}{\\text{The number of sample values}}[\/latex]<\/p>\r\n<br \/>\r\nExample: Find the mean of these weights collected from a sample of baby turtles. <br \/>\r\n<br \/>\r\n<p style=\"padding-left: 80px;\">[latex]3, 3, 7, 4, 3, 4[\/latex] (grams) <br \/>\r\nAdd the values: [latex]3+3+7+4+3+4=24[\/latex] <br \/>\r\nDivide by the [latex]6[\/latex] values we totaled <br \/>\r\n[latex]\\dfrac{24}{6}=4[\/latex]<\/p>\r\n<br \/>\r\nThe average weight of the baby turtles is [latex]4[\/latex] grams.<\/div>\r\n<\/section>\r\n<section class=\"textbox tryIt\">[ohm2_question hide_question_numbers=1]2275[\/ohm2_question]<\/section>\r\n<section class=\"textbox tryIt\">[ohm2_question hide_question_numbers=1]2274[\/ohm2_question]<\/section>","rendered":"<section class=\"textbox learningGoals\" aria-label=\"Learning Goals\">\n<ul>\n<li>Find the average value of a set of numbers<\/li>\n<\/ul>\n<\/section>\n<h2>Average Value<\/h2>\n<p>To make sense of data, we often want to explore it and summarize it using different numerical measures, such as percentages or averages. To understand the typical number of times something happens, we can calculate the\u00a0<strong>average<\/strong> or <strong>mean <\/strong>of the values. The average is calculated by adding the values and then dividing the total by the number of values in the data set.<\/p>\n<section class=\"textbox keyTakeaway\">\n<div>\n<h3>mean (average)<\/h3>\n<p>To calculate the mean of a data set, add up all the values selected and divide by the number of values you totaled.<\/p>\n<p>\nFormula: [latex]\\text{Mean or Average}=\\dfrac{\\text{Sum of the values in the sample}}{\\text{The number of sample values}}[\/latex]<\/p>\n<p>\nExample: Find the mean of these weights collected from a sample of baby turtles. <\/p>\n<p style=\"padding-left: 80px;\">[latex]3, 3, 7, 4, 3, 4[\/latex] (grams) <br \/>\nAdd the values: [latex]3+3+7+4+3+4=24[\/latex] <br \/>\nDivide by the [latex]6[\/latex] values we totaled <br \/>\n[latex]\\dfrac{24}{6}=4[\/latex]<\/p>\n<p>\nThe average weight of the baby turtles is [latex]4[\/latex] grams.<\/div>\n<\/section>\n<section class=\"textbox tryIt\"><iframe loading=\"lazy\" id=\"ohm2275\" class=\"resizable\" src=\"https:\/\/ohm.one.lumenlearning.com\/multiembedq.php?id=2275&theme=lumen&iframe_resize_id=ohm2275&source=tnh\" width=\"100%\" height=\"150\"><\/iframe><\/section>\n<section class=\"textbox tryIt\"><iframe loading=\"lazy\" id=\"ohm2274\" class=\"resizable\" src=\"https:\/\/ohm.one.lumenlearning.com\/multiembedq.php?id=2274&theme=lumen&iframe_resize_id=ohm2274&source=tnh\" width=\"100%\" height=\"150\"><\/iframe><\/section>\n","protected":false},"author":13,"menu_order":4,"template":"","meta":{"_candela_citation":"[]","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"part":375,"module-header":"background_you_need","content_attributions":[],"internal_book_links":[],"video_content":null,"cc_video_embed_content":{"cc_scripts":"","media_targets":[]},"try_it_collection":null,"_links":{"self":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapters\/1876"}],"collection":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/wp\/v2\/users\/13"}],"version-history":[{"count":8,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapters\/1876\/revisions"}],"predecessor-version":[{"id":7010,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapters\/1876\/revisions\/7010"}],"part":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/parts\/375"}],"metadata":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapters\/1876\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/wp\/v2\/media?parent=1876"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/pressbooks\/v2\/chapter-type?post=1876"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/wp\/v2\/contributor?post=1876"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/content.one.lumenlearning.com\/introstatstest\/wp-json\/wp\/v2\/license?post=1876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}